New York, NY, USA
Timmerer, Christian
Griwodz, Carsten
Begen, Ali Cengiz
Stockhammer, Thomas
Girod, Bernd
IEEE Journal on Selected Areas in Communications
Adaptive Media Streaming, DASH
EN
apr
4
681-683
https://www.itec.aau.at/bib/files/06774588.pdf
IEEE Communications Society
Guest Editorial: Adaptive Media Streaming
32
2014
This chapter introduces the concept of Sensory Experience which aims to define the Quality of Experience (QoE) going beyond audio-visual content. In particular, we show how to utilize sensory effects such as ambient light, scent, wind, or vibration as additional dimensions contributing to the quality of the user experience. Therefore, we utilize a standardized representation format for sensory effects that are attached to traditional multimedia resources such as audio, video, and image contents. Sensory effects are rendered on special devices (e.g., fans, lights, motion chair, scent emitter) in synchronization with the traditional multimedia resources and shall stimulate also other senses than hearing and seeing with the intention to increase the Quality of Experience (QoE), in this context referred to as Sensory Experience.
Heidelberg
Timmerer, Christian
Waltl, Markus
Rainer, Benjamin
Murray, Niall
Quality of Experience: Advanced Concepts, Applications and Methods
Möller, Sebastian
Raake, Alexander
Quality of Experience, Quality of Sensory Experience, MPEG-V, Sensory Effects
EN
mar
351-365
Springer
Sensory Experience: Quality of Experience Beyond Audio-Visual
2014
New York, NY, USA
Timmerer, Christian
Waltl, Markus
Rainer, Benjamin
Lederer, Stefan
Hellwagner, Hermann
IEEE Multimedia Communications Technical Committee E-Letter
EN
jan
1
23-26
https://www.itec.aau.at/bib/files/E-Letter-Jan2014.pdf
IEEE Communications Society [online]
Enhancing 3D Video to enable a Fully Immersive Sensory Experiences
http://committees.comsoc.org/mmc/e-news/E-Letter-Jan2014.pdf
9
2014
Lately, 3D is gaining momentum in cinemas and home environments. However, 2D and 3D video content only stimulates senses like hearing and seeing. In this paper we focus on a more enhanced level of entertainment by presenting a 4D multimedia player and a corresponding demonstration setup, which stimulates further senses such as haptics using the MPEG-V: Media Context and Control standard. The presented demonstration setup uses stereoscopic 3D and sensory devices, i.e., fans, vibration panels and lights. The combination of conventional 3D content with tailored sensory effects allows us to further enhance the viewing experience of the users.
Los Alamitos, CA, USA
Waltl, Markus
Rainer, Benjamin
Lederer, Stefan
Timmerer, Christian
Gassner, Katharina
Terlutter, Ralf
Proceedings of the 5th International Workshop on Quality of Multimedia Experience (QoMEX'13)
Timmerer, Christian
Le Callet, Patrick
Varela, Martin
Winkler, Stefan
Falk, Tiago H
-
3D, 4D, Sensory Effects, Sensory Experience, MPEG-V
EN
Klagenfurt am Wörthersee, Austria
jul
126-127
https://www.itec.aau.at/bib/files/QoMEX2013_4DPlayer.pdf
IEEE
2013.07.04
poster
A 4D Multimedia Player enabling Sensory Experience
http://www.qomex2013.org
2013
Multimedia content is omnipresent in our life. Thus, one can consume content through various distribution channels such as a DVD, Blu-Ray, or the Internet. Recently, 3D video gained more and more importance and a lot of movies presented in cinemas are 3D. Currently, research on additional constituents such as light and scent effects for further enhancing the viewing experience is conducted. As this research is taken up by more and more researchers and companies, the Moving Picture Experts Group (MPEG) ratified the MPEG-V standard, referred to as Media Context and Control, which allows the annotation of multimedia content with additional effects (e.g., light, wind, vibration) and render these effects synchronized to the multimedia content. Due to this fairly new research area, there are only a few subjective quality assessments evaluating such effects. Moreover, standardized assessment methods cannot be used as originally developed since they are optimized for audio-visual quality evaluations. Thus, this work lists and describes existing subjective quality assessment methods suitable for conducting assessments comprising multimedia content, especially videos, enriched by sensory effects (i.e., light, wind, and vibration). As there is a lack of suitable software for rendering sensory effects, this work introduces a multimedia player for playing multimedia content accompanied by sensory effects. Moreover, in this work, we performed four subjective quality assessments answering the following questions: (1) Do sensory effects enhance the viewing experience for different genres? (2) Do sensory effects have an influence on the perceived video quality? (3) Do light effects enhance the viewing experience for Web videos? (4) Do sensory effects have an impact on the perceived emotions while watching a video? Therefore, this work presents these subjective quality assessments including a detailed description of the assessments and their results. Moreover, this work introduces a dataset consisting of video sequences annotated with sensory effects for conducting subjective quality assessments. Finally, some recommendations for performing assessments comprising sensory effects which have been extracted from the conducted subjective quality assessments are given.
Waltl, Markus
EN
feb
234
http://ubdocs.uni-klu.ac.at/open/hssvoll/AC10774907.pdf
Alpen-Adria-Universität Klagenfurt
The Impact of Sensory Effects on the Quality of Multimedia Experience
2013
This paper provides an overview of our research conducted in the area of Sensory Experience including our implementations using MPEG-V Part 3 entitled ”Sensory Information”. MPEG-V Part 3 introduces Sensory Experience as a tool to increase the Quality of Experience by annotating traditional multimedia data with sensory effects. These sensory effects are rendered on special devices like fans, vibration chairs, ambient lights, scent disposers, water sprayers, or heating/cooling devices stimulating senses beyond the traditional ones. The paper's main focus is on the end-to-end aspects including the generation, transmission, and synchronized rendering of sensory effects with the traditional multimedia data taking movie clips as an example. Therefore, we present in this paper an open source tool chain that provides a complete end-to-end sensory effect generation and consumption framework. Furthermore, we summarize results from various subjective quality assessments conducted in this area. Finally, we point out research challenges that may encourage further research within this emerging domain.
Amsterdam, Netherlands
Waltl, Markus
Rainer, Benjamin
Timmerer, Christian
Hellwagner, Hermann
10.1016/j.image.2012.10.009
Signal Processing: Image Communication
Quality of Experience; Sensory Experience; Subjective Quality Assessment; Experimental Results; MPEG-V; Annotation Tool; Simulation Tool; Web Browser Plug-in; Sensory Information
EN
feb
2
136-150
Elsevier
An End-to-End tool chain for sensory experience based on MPEG-V
http://dx.doi.org/10.1016/j.image.2012.10.009
28
2013
Enriching multimedia with additional effects such as olfaction, light, wind, or vibration is gaining more and more momentum in both research and industry. Hence, there is the need to determine the influence of individual effects on the Quality of Experience (QoE). In this paper, we present a subjective quality assessment using the MPEG-V standard to annotate video sequences with individual sensory effects (i.e., wind, light, and vibration) and all combinations thereof. Based on the results we derive a utility model for sensory experience that accounts for the assessed sensory effects. Finally, we provide an example instantiation of the utility model and validate it against current and past results of our subjective quality assessments conducted so far.
Los Alamitos, CA, USA
Timmerer, Christian
Rainer, Benjamin
Markus, Waltl
Proceedings of the 5th International Workshop on Quality of Multimedia Experience (QoMEX'13)
Timmerer, Christian
Le Callet, Patrick
Varela, Martin
Winkler, Stefan
Falk, Tiago H
-
Quality of Multimedia Experience, Sensory Effects, MPEG-V, Sensory Experience, Utility Model
EN
Klagenfurt am Wörthersee, Austria
jul
224-229
https://www.itec.aau.at/bib/files/QoMEX2013_UtilityModel.pdf
IEEE
2013.07.05
registered
A Utility Model for Sensory Experience
http://www.qomex2013.org
2013
Selecting and adopting the appropriate assessment method for conducting subjective quality assessments is a challenging task. The method decides whether the assessment is successful in delivering the correct answers to previously set up hypotheses. Therefore, in this paper we provide recommendations on test methods used in the domain of Sensory Experience. The proposed test methods comprise single stimulus and double stimulus methods. These test methods were used in previous studies and are presented in combination with the results of the subjective quality assessments with which they were used. Furthermore, we briefly outline our test setup, test design, and test content for assessing Sensory Experience which have been validated through conducted assessments.
Vienna, Austria
Rainer, Benjamin
Timmerer, Christian
Waltl, Markus
4th International Workshop on Perceptual Quality of Systems 2013 (PQS 2013)
Schatz, Raimund
Subjective Evaluation Methods; Sensory Experience; Recommendations
EN
Vienna, Austria
sep
1-6
IEEE
2013.09.03
registered
Recommendations for the Subjective Evaluation of Sensory Experience
2013
Preparing and conducting subjective quality assessments is a time consuming and expensive task. Therefore, we present a Web-based evaluation framework which aims on reducing the time needed for planning and designing a subjective quality assessment. The presented framework can be used for both crowdsourced and laboratory experiments. It should ease the task of designing a subjective quality assessment by providing a flexible framework. The framework has proven its applicability and flexibility to design and conduct assessments in the past and is available as open source.
Los Alamitos, CA, USA
Rainer, Benjamin
Waltl, Markus
Timmerer, Christian
Proceedings of the 5th International Workshop on Quality of Multimedia Experience (QoMEX'13)
Timmerer, Christian
Le Callet, Patrick
Varela, Martin
Winkler, Stefan
Falk, Tiago H
-
Evaluation Platform, Crowdsourced Quality Evaluation, Laboratory Quality Evaluation, Quality Assessment Framework
EN
Klagenfurt am Wörthersee, Austria
jul
24-25
https://www.itec.aau.at/bib/files/QoMEX2013_EvalPlatform.pdf
IEEE
2013.07.03
poster
A Web based Subjective Evaluation Platform
http://www.qomex2013.org
2013
Dynamic Adaptive Streaming over HTTP (DASH) is an ISO/IEC MPEG standard which enables the convenient and smooth transportation of multimedia data to heterogeneous end devices over networks with variable bandwidth conditions. This kind of streaming technology is mainly used with HTTP 1.0 and 1.1 respectively, which both have some drawbacks. Therefore, the IETF has started the development of HTTP 2.0, which is based on Google’s SPDY proposal and already supported by several major companies, e.g., Facebook, Twitter, Akamai, Mozilla and obviously Google. Furthermore, Content Centric Networking (CCN) is another novel approach for future networks that is considered as an revolutionary approach compared to HTTP 2.0. The CCN communication paradigm is completely different and does not rely on direct connections between hosts, it rather focuses on the content. This paper demonstrates DASH with HTTP 2.0/SPDY and CCN using our universal libdash library. Moreover, different mechanisms of DASH will be shown that can be used to provide on-demand and live content in an efficient and comfortable way.
San Jose, USA
Mueller, Christopher
Lederer, Stefan
Pöcher, Jörg
Timmerer, Christian
In Proceedings of the IEEE International Conference on Multimedia and Expo (ICME) 2013
Servetti, Antonio
Aydin, Alatan
EN
San Jose, USA
jul
1-2
https://www.itec.aau.at/bib/files/libdash-demo.pdf
IEEE
2013.07.18
poster
libdash – An Open Source Software Library for the MPEG-DASH Standard
2013
Multimedia delivery over the Hypertext Transfer Protocol (HTTP) is currently very popular and with MPEGs' Dynamic Adaptive Streaming over HTTP (DASH) a standard is available to provide interoperability and enable large-scale deployments using existing infrastructures (servers, proxies, caches, etc.). This paper identifies some issue when multiple DASH clients compete for a bandwidth bottleneck when transparent proxy caches are deployed. Therefore, we propose a fair share adaptation scheme to be included within the client which – through experimental results – achieve a more efficient utilization of the bottleneck bandwidth and less quality switches.
New York, NY, USA
Mueller, Christopher
Lederer, Stefan
Timmerer, Christian
IEEE Multimedia Communications Technical Committee E-Letter
Dynamic Adaptive Streaming over HTTP, DASH, Fair Adaptation, Proxy Cache, Multimedia
EN
mar
2
30-33
https://www.itec.aau.at/bib/files/E-Letter-March13.pdf
IEEE Communications Society [online]
Fair Share Dynamic Adaptive Streaming over HTTP
http://committees.comsoc.org/mmc/e-news/E-Letter-March13.pdf
8
2013
MPEG Dynamic Adaptive Streaming over HTTP (DASH) is a new streaming standard that has been recently ratified as an international standard (IS). In comparison to other streaming systems, e.g., HTTP progressive download, DASH is able to handle varying bandwidth conditions providing smooth streaming. Furthermore, it enables NAT and Firewall traversal, flexible and scalable deployment as well as reduced infrastructure costs due to the reuse of existing Internet infrastructure components, e.g., proxies, caches, and Content Distribution Networks (CDN). Recently, the Hypertext Transfer Protocol Bis (httpbis) working group of the IETF has officially started the development of HTTP 2.0. Initially three major proposals have been submitted to the IETF i.e., Googles' SPDY, Microsofts' HTTP Speed+Mobility and Network-Friendly HTTP Upgrade, but SPDY has been chosen as working draft for HTTP 2.0. In this paper we implemented MPEG-DASH over HTTP 2.0 (i.e., SPDY), demonstrating its potential benefits and drawbacks. Moreover, several experimental evaluations have been performed that compare HTTP 2.0 with HTTP 1.1 and HTTP 1.0 in the context of DASH. In particular, the protocol overhead, the performance for different round trip times, and DASH with HTTP 2.0 in a lab test scenario has been evaluated in detail.
San Jose, USA
Mueller, Christopher
Lederer, Stefan
Timmerer, Christian
Hellwagner, Hermann
In Proceedings of the IEEE International Conference on Multimedia and Expo (ICME) 2013
Li, Jin
EN
San Jose, USA
jul
1-6
https://www.itec.aau.at/bib/files/paper_330.pdf
IEEE
2013.07.17
registered
Dynamic Adaptive Streaming over HTTP/2.0
2013
In this paper, we present our implementation and evaluation of Dynamic Adaptive Streaming over Content centric networking (DASC) which implements MPEG Dynamic Adaptive Streaming over HTTP (DASH) utilizing a Content Centric Networking (CCN) naming scheme to identify content segments in a CCN network. In particular, video segments formatted according to MPEG-DASH are available in different quality levels but instead of HTTP, CCN is used for referencing and delivery. Based on the conditions of the network, the DASC client issues interests for segments achieving the best throughput. Due to segment caching within the network, subsequent requests for the same content can be served quicker. As a result, the quality of the video a user receives progressively improves, effectively overcoming bottlenecks in the network. We present two sets of experiments to evaluate the performance of DASC showing that throughput indeed improves. However, the generated overhead is relatively large and the adaptation strategy used for DASH that assumes an end-to-end connection could be revised for the hop-by-hop architecture of CCN.
Budapest
Liu, Yaning
Geurts, Joost
Point, Jean-Charles
Lederer, Stefan
Rainer, Benjamin
Mueller, Christopher
Timmerer, Christian
Hellwagner, Hermann
Proceedings of the IEEE international Conference on Communication (ICC) 2013 – Next-Generation Networking Symposium
Mattheisen, Christopher
Murase, Tutomu
Content Centric Networking, Dynamic Adaptive Streaming, HTTP Video Streaming, MPEG-DASH
EN
Budapest, Hungary
jun
2222-2226
https://www.itec.aau.at/bib/files/ICC2013 -DASH Over CCN.PDF
IEEE
2013.06.11
registered
Dynamic Adaptive Streaming over CCN: A Caching and Overhead Analysis
http://www.ieee-icc.org
2013
This paper presents the usage of CCN, which is a candidate for the next-generation Internet, in combination with the new Dynamic Adaptive Streaming over HTTP (DASH) standard, which was recently ratified by ISO/IEC MPEG. In contrast to the Internet Protocol, which is mainly based on the host-to-host connection paradigm originated in the 1970s, Content Centric Networking (CCN) focuses on the content itself, instead of its location. Considering the dominance of multimedia traffic in todays' Internet, the streaming performance of DASH over CCN as well as the problems introduced by this combination is worth to be investigated in detail. Therefore, we evaluate the protocol overhead introduced by the usage of CCN compared to the HTTP versions 1.0 and 1.1. Furthermore, the performance of DASH over CCN under different network conditions is compared to the performance of HTTP 1.0/1.1. Our results showed that although CCN comes together with higher protocol overhead than HTTP 1.0/1.1 as well as a prototype implementation, it can definitely compete with HTTP 1.0 in media streaming. Based on the evaluation results, problems as well as improvement possibilities are identified, which are the basis for future work in this area.
San Jose, USA
Lederer, Stefan
Mueller, Christopher
Rainer, Benjamin
Timmerer, Christian
Hellwagner, Hermann
Proceedings of the IEEE International Conference on Multimedia and Expo (ICME) 2013
Wang, Haohong
EN
San Jose, USA
jul
1-6
https://www.itec.aau.at/bib/files/ICME_Overhead-Performance-DASHoverCCN.pdf
IEEE
2013.07.18
registered
An Experimental Analysis of Dynamic Adaptive Streaming over HTTP in Content Centric Networks
2013
This paper presents the usage of Content Centric Networking (CCN) for adaptive multimedia streaming in mobile environments, leveraging the recent ISO/IEC MPEG Dynamic Adaptive Streaming over HTTP (DASH) standard. The performance of DASH over CCN is evaluated using real-world mobile bandwidth traces and compared to previous evaluations of different DASH-based as well as proprietary systems. As there are no client-server connections in CCN, it offers the possibility to transfer data from multiple sources as well as over multiple links in parallel, which is definitely an important feature, e.g., for mobile devices offering multiple network links. This functionality is used and evaluated in this paper in combination with DASH, making it possible to dynamically choose the best performing link for media streaming, which is a clear advantage over DASH using HTTP and the TCP/IP protocol stack. The evaluation therefore investigates DASH over CCN in two scenarios using synthetic and real-world mobile bandwidth traces respectively, showing a significantly better performance than conventional DASH using only one connection.
Budapest
Lederer, Stefan
Mueller, Christopher
Rainer, Benjamin
Timmerer, Christian
Hellwagner, Hermann
In Proceedings of the IEEE ICC'13 - Workshop on Immersive & Interactive Multimedia Communications over the Future Internet
Assuncao, Pedro
Atzori, Luigi
Dagiuklas, Tasos
Kondoz, Ahmet
MPEG-DASH, CCN, Dynamic Adaptive Streaming over HTTP, Content Centric Networking, Evaluation
EN
Budapest, Hungary
jun
687-691
https://www.itec.aau.at/bib/files/ICC2013_Mobile_DASHoverCCN.pdf
IEEE
2013.06.13
registered
Adaptive Streaming over Content Centric Networks in Mobile Networks using Multiple Links
http://multicomm.diee.unica.it/
2013
The delivery of multimedia content over HTTP and on top of existing Internet infrastructures is becoming the preferred method within heterogeneous environment. The basic design principle is having an intelligent client which selects given and applicable media representations by issuing HTTP requests for individual segments based on the users' context and current conditions. Typically, this client behavior differs between implementations of the same kind and for the objective evaluations thereof appropriate datasets are needed. This paper presents a distributed dataset for the recently published MPEG-DASH standard which is mirrored at different sites across Europe, namely Klagenfurt, Paris, and Prague. A client implementation may choose to request segments from these sites and dynamically switch to a different location, e.g., in case the one currently used causes any issues. Thus, this distributed DASH dataset can be used for real-world evaluations enabling the simulation of switching between different content delivery networks.
New York, NY, USA
Lederer, Stefan
Mueller, Christopher
Timmerer, Christian
Concolato, Cyril
Le Feuvre, Jean
Fliegel, Karel
Proceedings of the 4th ACM Multimedia Systems Conference
Griwodz, Carsten
Dataset, Dynamic Adaptive Streaming over HTTP, DASH.
EN
Oslo, Norway
feb
pp. 131-135
https://www.itec.aau.at/bib/files/MMSys_CDN_Simulation_Dataset_v2.0.pdf
ACM
2013.02.27
registered
Distributed DASH Dataset
http://www.mmsys.org/
2013
New York, NY, USA
Lederer, Stefan
Mueller, Christopher
Grandl, Reinhard
Timmerer, Christian
IEEE Multimedia Communications Technical Committee E-Letter
EN
nov
6
38-41
https://www.itec.aau.at/bib/files/E-Letter-Nov2013.pdf
IEEE Communications Society [online]
Adaptive Multimedia Streaming over Information-Centric Networks in Mobile Networks using Multiple Mobile Links
http://committees.comsoc.org/mmc/e-news/E-Letter-Nov2013.pdf
8
2013
MPEG-M is a suite of ISO/IEC standards (ISO/IEC 23006) that has been developed under the auspices of Moving Picture Experts Group (MPEG). MPEG-M, also known as Multimedia Service Platform Technologies (MSPT), facilitates a collection of multimedia middleware APIs and elementary services as well as service aggregation so that service providers can offer users a plethora of innovative services by extending current IPTV technology toward the seamless integration of personal content creation and distribution, e-commerce, social networks and Internet distribution of digital media.
Amsterdam, Netherlands
Kudumakis, Panos
Sandler, Mark
Anadiotis, Angelos-Christos G
Venieris, Iakovos S
Difino, Angelo
Wang, Xin
Tropea, Giuseppe
Grafl, Michael
Rodríguez-Doncel, Víctor
Llorente, Silvia
Delgado, Jaime
10.1016/j.image.2013.10.006
09235965
Signal Processing: Image Communication
EN
dec
24
Elsevier
MPEG-M: A Digital Media Ecosystem for Interoperable Applications
http://dx.doi.org/10.1016/j.image.2013.10.006
2013
Scalable Video Coding (SVC) in media streaming enables dynamic adaptation based on device capabilities and network conditions. In this paper, we investigate deployment options of SVC for Dynamic Adaptive Streaming over HTTP (DASH) with a special focus on scalability options, which are relevant for dynamic adaptation, especially in wireless and mobile environments. We evaluate the performance of SVC with respect to spatial and quality scalability options and compare it to non-scalable Advanced Video Coding (AVC). Performance evaluations are performed for various encoder implementations with high-definition (1080p) content. We show that a hybrid approach with multiple independent SVC bitstreams can have advantages in storage requirements at comparable rate-distortion performance.
Los Alamitos, CA, USA
Grafl, Michael
Timmerer, Christian
Hellwagner, Hermann
Cherif, Wael
Ksentini, Adlen
Proceedings of the 2nd IEEE WoWMoM Workshop on Video Everywhere (ViDEv 2013)
Todd, Terence D
Paterakis, Michael
scalable video coding; HTTP streaming; adaptation; high-definition; hybrid SVC-DASH
EN
Madrid, Spain
jun
7
https://www.itec.aau.at/bib/files/Hybrid_SVC-DASH.pdf
IEEE
2013.06.04
registered
Evaluation of Hybrid Scalable Video Coding for HTTP-based Adaptive Media Streaming with High-Definition Content
2013
On TV screens, PCs, tablets, and mobile phones, video streaming has become a constant companion in our daily lives. For every video, we expect high visual quality, free from distortions, that is adjusted to the device at hand. But how can streaming systems cope with the increasing network traffic, the subsequent network congestions, and the different characteristics of end-user terminals? This thesis covers approaches for distributed adaptation of scalable video resources in media delivery. Scalable video resources consist of several layers that enable various spatial resolutions, frame rates, or qualities of a content. By dropping some of these layers, the video can be adjusted to the available bandwidth or to a specific end-user terminal. The adaptation can be performed on the sender side, on the receiver side, and on one or more network nodes. Scalable media coding can also help to reduce bandwidth requirements in multicast scenarios (e.g., for IPTV). One popular realization of scalable media coding is the Scalable Video Coding (SVC) standard. This thesis consists of three main parts, addressing various challenges towards efficient SVC adaptation. The first part of this thesis focuses on the encoding of SVC. In order to enable efficient adaptation, the configuration of layers has to be carefully chosen at encoding time. Thus, the performances of various encoding configurations and encoder implementations are evaluated. Furthermore, encoding guidelines for SVC are developed, which are aligned with recommendations of industry streaming solutions. The evaluation results of the developed SVC encoding guidelines suggest that quality scalability should be preferred over spatial scalability for adaptive streaming scenarios. Different resolutions for supporting device classes should rather be provided as separate SVC streams. The second part of this thesis deals with the fact that scalable media formats, such as SVC, are still not widely adopted neither on the sender side nor on the end-user terminal. In order to enable the deployment of SVC for network transmission and to improve the support for streaming to heterogeneous devices, the concept of SVC tunneling is introduced in this thesis. The video is transcoded to SVC at the sender side and then transcoded back to another video format at the receiver side at an advanced home-gateway. However, the transcoding between video formats has a negative impact on the video quality. The trade-off between quality loss and bandwidth efficiency of SVC tunneling is evaluated. SVC tunneling with quality layers enables bandwidth savings at moderate quality loss (approx. 2.5 dB) compared to streaming separate non-scalable representations of the same qualities. In the third part of this thesis, adaptation techniques for content-aware networks are investigated. In content-aware networks, some network nodes are capable to dynamically adapt video streams in reaction to varying network loads. With the increasing adoption of HTTP streaming, adaptation at the client side becomes a main factor for the viewing experience. The switch between two representations (e.g., different bitrates) of a video can disrupt that viewing experience. To reduce the effect of an abrupt quality change, the approach of a smooth transition between representations is developed and evaluated. A subjective user study indicates that this approach can indeed improve the overall viewing quality. Finally, the findings of the previous parts are integrated in an adaptive end-to-end SVC streaming system. Evaluations of this streaming system show that the developed adaptation framework significantly improves the video quality under packet loss (by up to 6 dB) compared to non-adaptive streaming.
Grafl, Michael
EN
jun
264
https://www.itec.aau.at/bib/files/Thesis_mgrafl.pdf
Alpen-Adria-Universität Klagenfurt
Scalable Media Delivery Chain with Distributed Adapation
2013
When an adaptive media streaming system has to switch from one representation of the content to another, the switch causes viewer distraction. We introduce the concept of representation switch smoothing for alleviating the distraction and improving the overall quality of experience. As adaptive HTTP streaming systems typically deploy video buffers on the client side, the adaptation decision is known far enough ahead of playout time to perform a seamless transition between quality representations. We discuss implementation considerations for an adaptive HTTP streaming system with scalable video coding, present a subjective evaluation of the proposed approach, and identify factors that influence how smooth transitions are perceived.
Vienna, Austria
Grafl, Michael
Timmerer, Christian
Proceedings of the 4th International Workshop on Perceptual Quality of Systems (PQS 2013)
Schatz, Raimund
Hoßfeld, Tobias
adaptive streaming; representation switching; quality of experience
EN
Vienna, Austria
sep
178-183
https://www.itec.aau.at/bib/files/representation_switch_smoothing.pdf
FTW
2013.09.04
registered
Representation Switch Smoothing for Adaptive HTTP Streaming
2013
Scalability within media coding allows for content adaptation towards heterogeneous user contexts and enables in-network adaptation. However, there is no straightforward solution how to encode the content in a scalable way while maximizing rate-distortion performance. In this paper we provide encoding guidelines for scalable video coding based on a survey of media streaming industry solutions and a comprehensive performance evaluation using four state of the art scalable video codecs with a focus on high-definition content (1080p).
Los Alamitos, CA, USA
Grafl, Michael
Timmerer, Christian
Hellwagner, Hermann
Cherif, Wael
Negru, Daniel
Battista, Stefano
Proceedings of the 18th IEEE Symposium on Computers and Communication (ISCC 2013)
Douligeris, Christos
Gotovac, Sven
Vojnović, Milan
scalable video coding; adaptation; high-definition video; encoding; adaptive media streaming; content-aware networking
EN
Split, Coratia
jul
6
https://www.itec.aau.at/bib/files/SVC_guide_and_eval.pdf
IEEE
2013.07.10
registered
Scalable Video Coding Guidelines and Performance Evaluations for Adaptive Media Delivery of High Definition Content
2013
Scalable Video Coding (SVC) in media streaming enables dynamic adaptation based on device capabilities and network conditions. In this paper, we investigate deployment options of SVC for Dynamic Adaptive Streaming over HTTP (DASH) with a special focus on scalability options, which are relevant for dynamic adaptation, especially in wireless and mobile environments. We establish encoding recommendations and evaluate the performance of SVC with respect to spatial and quality scalability options and compare it to non-scalable Advanced Video Coding (AVC). Performance evaluations are performed for various encoder implementations with high-definition (1080p) content. We show that a hybrid approach with multiple independent SVC bitstreams can have advantages in storage requirements at comparable rate-distortion performance.
Amsterdam, Netherlands
Grafl, Michael
Timmerer, Christian
Hellwagner, Hermann
Cherif, Wael
Ksentini, Adlen
01403664
Computer Communications
EN
dec
11
Elsevier
Hybrid Scalable Video Coding for HTTP-based Adaptive Media Streaming with High-Definition Content
2013
Given that multimedia services are becoming increasingly popular, they are expected to play a dominant role for the Future Internet. In this context, it is essential that Content-Aware Networking (CAN) architectures, as envisaged in the frame of the Future Internet, explicitly address the efficient delivery and processing of multimedia content. This article proposes adopting a content-aware approach into the network infrastructure, thus making it capable of identifying, processing, and manipulating (i.e., adapting, caching, etc.) media streams and objects in real time towards Quality of Service/Experience (QoS/QoE) maximization. Our proposal is built upon the exploitation of scalable media coding technologies within such a content-aware networking environment and is discussed based on four representative use cases for media delivery (unicast, multicast, peer-to-peer, and adaptive HTTP streaming) and with respect to a selection of CAN challenges, specifically flow processing, caching/buffering, and QoS/QoE management.
Los Alamitos, CA, USA
Grafl, Michael
Timmerer, Christian
Hellwagner, Hermann
Xilouris, George
Gardikis, Georgios
Renzi, Daniele
Battista, Stefano
Borcoci, Eugen
Negru, Daniel
http://doi.ieeecomputersociety.org/10.1109/MMUL.2012.57
1070-986X
IEEE MultiMedia
EN
apr
2
30-41
https://www.itec.aau.at/bib/files/SMC_enabling_CAN.pdf
IEEE Computer Society
Scalable Media Coding enabling Content-Aware Networking
20
2013
Multimedia (especially video) services constitute a dominant and ever increasing portion of the global Internet traffic, while they are expected to also play a major role in the Future Internet scene. In order to address this reality in the networking domain, a promising perspective is to gradually shift from the current, service-unaware, best-effort nature of IP networks into a network logic which is service-aware – and, in specific, media-aware. This chapter discusses how media-awareness can be introduced in the networking domain in a way which is both feasible and scalable, leveraging at the same time state-of-the-art technologies in video representations, such as Scalable Video Coding (SVC) and Dynamic Adaptive Streaming over HTTP (DASH).
New York
Gardikis, Georgios
Pallis, Evangelos
Grafl, Michael
3D Future Internet Media
10.1007/978-1-4614-8373-1_7
Kondoz, Ahmet
Dagiuklas, Tasos
EN
dec
6
Springer Science+Business Media, LLC
Media-Aware Networks in Future Internet Media
http://link.springer.com/chapter/10.1007/978-1-4614-8373-1_7
2013
This paper shows how adaptive streaming and on-device caching can be used to provide an always available video service. A DASH client has been extended to deal with periods of zero network connectivity, and seamlessly works in conjunction with CCN to provide local storage that is intelligently updated to provide an improved quality of experience.
Palo Alto
Crabtree, Barry
Stevens, Tim
Allan, Brahin
Lederer, Stefan
Posch, Daniel
Mueller, Christopher
Timmerer, Christian
CCNxConn 2013
Mahadevan, Priya
EN
Palo Alto, CA, USA
sep
1-2
https://www.itec.aau.at/bib/files/Video adaptation in limited or zero network coverage-CCNxCon.pdf
PARC
2013.09.06
poster
Video Adaptation in Limited or Zero Network Coverage
http://www.ccnx.org/ccnxcon2013/ccnxcon-2013-official-agenda/
2013
Dynamic Adaptive Streaming over HTTP (DASH) is referred to as a multimedia streaming standard to deliver high quality multimedia content over the Internet using conventional HTTP Web servers. As a fundamental feature, it enables automatic switching of quality levels according to network conditions, user requirements, and expectations. Currently, the proposed adaptation schemes for HTTP streaming mostly rely on throughput measurements and/or buffer-related metrics, such as buffer exhaustion and levels. In this paper, we propose to enhance the DASH adaptation logic by feeding it with additional information from our evaluation of the users' perception approximating the user- perceived quality of video playback. The proposed model aims at conveniently combining TCP-, buffer-, and media content-related metrics as well as user requirements and expectations to be used as an input for the DASH adaptation logic. Experiments have demonstrated that the chosen model enhances the capability of the adaptation logic to select the optimal video quality level. Finally, we integrated all our findings into a real DASH system with QoE monitoring capabilities.
Los Alamitos, CA, USA
Alberti, Claudio
Renzi, Daniele
Timmerer, Christian
Mueller, Christopher
Lederer, Stefan
Battista, Stefano
Mattavelli, Marco
Proceedings of the 5th International Workshop on Quality of Multimedia Experience (QoMEX'13)
Timmerer, Christian
Le Callet, Patrick
Varela, Martin
Winkler, Stefan
Falk, Tiago
DASH, Quality of Experience, monitoring, content adaptation
EN
Klagenfurt am Wörthersee, Austria
jul
58-63
https://www.itec.aau.at/bib/files/p20-Alberti.pdf
IEEE
2013.07.03
registered
Automated QoE Evaluation of Dynamic Adaptive Streaming over HTTP
2013
Additional constituents for the representation of multimedia content gained more and more attention. For example, the amount of cinemas equipped with additional devices (e.g., ambient light, vibrating seats, wind generators, water sprayers, heater/coolers) that stimulate senses going beyond audition and vision increases. On the content side the MPEG-V standard specifies – among others – Sensory Effect Metadata (SEM) which provides means to describe sensory effects such as wind, vibration, light, etc. to be attached to audio-visual content and, thus, offering an enhanced and immersive experience for the user. However, there is a lack of a common set of test content allowing for various subjective user studies and verification across different test sites. In this paper we provide our dataset comprising a number of videos from different genres enriched with MPEG-V compliant Sensory Effect Metadata descriptions. Furthermore, we describe possible test setups using off-the-shelf hardware for conducting subjective quality assessments.
Yarra Valley, Australia
Waltl, Markus
Timmerer, Christian
Rainer, Benjamin
Hellwagner, Hermann
Proceedings of the 4th International Workshop on Quality of Multimedia Experience (QoMEX'12)
Burnett, Ian
Wu, Henry
-
Sensory Experience, Sensory Effects, MPEG-V, Dataset, Test Environment
EN
Yarra Valley, Australia
jul
115-120
https://www.itec.aau.at/bib/files/QoMEX2012_Dataset.pdf
IEEE
2012.07.05
registered
Sensory Effect Dataset and Test Setups
http://www.qomex2012.org
2012
More and more content in various formats becomes available via the WorldWideWeb (WWW). Currently availableWeb browsers are able to access and interpret these contents (i.e., Web videos, text, image, and audio). These contents stimulate only senses like audition or vision. Recently, it has been proposed to stimulate also other senses while consuming multimedia content, through so-called sensory effects. These sensory effects aim to enhance the ambient experience by providing effects such as light, wind, vibration, etc. The effects are represented as Sensory Effect Metadata (SEM) description which is associated to multimedia content and is rendered on devices like fans, vibration chairs, or lamps. In this paper we present two subjective quality assessments which comprise sensory effects, such as light, in the area of the WWW and their results achieved. The first assessment evaluates the influence of light effects on the Quality of Experience (QoE). The second assessment measures the impact of different settings for the color calculation on the viewing experience. Furthermore, we describe a Web browser plug-in for Mozilla Firefox which is able to render such sensory effects that are provided via the WWW.
Berlin, Heidelberg, New York
Waltl, Markus
Timmerer, Christian
Rainer, Benjamin
Hellwagner, Hermann
10.1007/s11042-012-1099-8
Multimedia Tools and Applications
World Wide Web, MPEG-V, Subjective quality assessment, Sensory effects, Quality of multimedia experience
EN
may
-
1-20
Springer Verlag
Sensory Effects for Ambient Experiences in the World Wide Web
http://dx.doi.org/10.1007/s11042-012-1099-8
-
2012
Multimedia content is increasingly used in every area of our life. Still, each type of content only stimulates the visual and/or the hearing system. Thus, the user experience depends only on those two stimuli. In this paper we introduce a standard which offers the possibility to add additional effects to multimedia content. Furthermore, we present a multimedia player and a Web browser plug-in which uses this standard to stimulate further senses by using additional sensory effects (i.e., wind, vibration, and light) to enhance the user experience resulting in a unique, worthwhile sensory experience.
Berlin, Heidelberg, New York
Waltl, Markus
Rainer, Benjamin
Timmerer, Christian
Hellwagner, Hermann
Advances in Multimedia Modeling
Schoeffmann, Klaus
Merialdo, Bernard
Hauptmann, Alexander
Ngo, Chong-Wah
Andreopoulos, Yiannis
Breiteneder, Christian
MPEG-V, User Experience, Sensory Experience, Media Player, Ambient, World Wide Web
EN
Klagenfurt, Austria
jan
624-626
https://www.itec.aau.at/bib/files/mwbrcthh_mmm2012.pdf
Springer
LNCS 7131
2012.01.05
poster
Enhancing the User Experience with the Sensory Effect Media Player and AmbientLib
2012
This paper describes a toolset for the authoring, simulating, and rendering of multimedia content annotated with Sensory Effect Metadata (SEM) descriptions as specified in Part 3 of the MPEG V standard. This part of MPEG-V standardizes the description of sensory effects (e.g., light, wind) in order to be rendered on sensory devices (e.g., fans, vibration chairs) aiming at generating a sensory experience stimulating possibly all human senses. Our implementation comprises a toolset to author sensory effects associated with multimedia content and the simulation thereof. Furthermore, it includes a library, a standalone player, and a Web browser plug-in which enables the playback and rendering of sensory effects on off-the-shelf rendering devices and in various contexts. All software modules are available under the GNU General Public License (GPL) v3 and the GNU Lesser General Public License (LGPL) v3 respectively.
Nara, Japan
Waltl, Markus
Rainer, Benjamin
Timmerer, Christian
Hellwagner, Hermann
Proceedings of the 20th ACM Multimedia (MM'12)
Babaguchi, Noboru
Aizawa, Kiyoharu
Smith, John
-
MPEG-V, Annotation Tool, Simulator, Media Player, Web Browser Plug-in, Sensory Effects, Sensory Experience
EN
Nara, Japan
oct
1469-1472
https://www.itec.aau.at/bib/files/acmmm2012_ossc_mwbrcthh.pdf
ACM
2012.10.31
registered
A Toolset for the Authoring, Simulation, and Rendering of Sensory Experiences
http://www.acmm2012.org
2012
In this tutorial we present dynamic adaptive streaming over HTTP ranging from content creation to consumption. It particular, it provides an overview of the recently ratified MPEG-DASH standard, how to create content to be delivered using DASH, its consumption, and the evaluation thereof with respect to competing industry solutions. The tutorial can be roughly clustered into three parts. In part I we will provide an introduction to DASH, part II covers content creation, delivery, and consumption, and, finally, part III deals with the evaluation of existing (open source) MPEG-DASH implementations compared to state-of-art deployed industry solutions.
New York, NY, USA
Timmerer, Christian
Griwodz, Carsten
Proceedings of the 20th ACM international conference on Multimedia
10.1145/2393347.2396553
Babaguchi, Noboru
Aizawa, Kiyoharu
Smith, John
MPEG, adaptation, dash, dynamic adaptive http streaming, streaming
EN
Nara, Japan
oct
1533-1534
https://www.itec.aau.at/bib/files/mtu008-timmerer.pdf
ACM
MM '12
https://www.itec.aau.at/bib/files/mtu008-timmerer-slides.pdf
2012.10.29
registered
Dynamic adaptive streaming over HTTP: from content creation to consumption
http://doi.acm.org/10.1145/2393347.2396553
2012
This paper introduces the concept of sensory experience by utilizing sensory effects such as wind or lighting as another dimension which contributes to the quality of the user experience. In particular, we utilize a representation format for sensory effects that are attached to traditional multimedia resources such as audio, video, and image contents. Sensory effects (e.g., wind, lighting, explosion, heat, cold) are rendered on special devices (e.g., fans, ambient lights, motion chair, air condition) in synchronization with the traditional multimedia resources and shall stimulate other senses than audition and vision (e.g., mechanoreception, equilibrioception, thermoreception), with the intention to increase the users Quality of Experience (QoE). In particular, the paper provides a comprehensive introduction into the concept of sensory experience, its assessment in terms of the QoE, and related standardization and implementation efforts. Finally, we will highlight open issues and research challenges including future work.
Amsterdam, Netherlands
Timmerer, Christian
Waltl, Markus
Rainer, Benjamin
Hellwagner, Hermann
10.1016/j.image.2012.01.016
Signal Processing: Image Communication
Quality of Experience, Sensory experience, Subjective quality assessment, Experimental results, MPEG-V
EN
sep
8
909-916
https://www.itec.aau.at/bib/files/1-s2.0-S0923596512000252-main.pdf
Elsevier
Assessing the quality of sensory experience for multimedia presentations
http://dx.doi.org/10.1016/j.image.2012.01.016
27
2012
Multimedia is ubiquitously available online with large amounts of video increasingly consumed through Web sites such as YouTube or Google Video. However, online multimedia typically limits users to visual/auditory stimulus, with onscreen visual media accompanied by audio. The recent introduction of MPEG-V proposed multi-sensory user experiences in multimedia environments, such as enriching video content with so-called sensory effects like wind, vibration, light, etc. In MPEG-V, these sensory effects are represented as Sensory Effect Metadata (SEM), which is additionally associated to the multimedia content. This paper presents three user studies that utilize the sensory effects framework of MPEG-V, investigating the emotional response of users and enhancement of Quality of Experience (QoE) of Web video sequences from a range of genres with and without sensory effects. In particular, the user studies were conducted in Austria and Australia to investigate whether geography and cultural differences affect users’ elicited emotional responses and QoE.
Yarra Valley, Australia
Rainer, Benjamin
Waltl, Markus
Cheng, Eva
Shujau, Muawiyath
Timmerer, Christian
Davis, Stephen
Burnett, Ian
Hellwagner, Hermann
Proceedings of the 4th International Workshop on Quality of Multimedia Experience (QoMEX'12)
Burnett, Ian
Wu, Henry
-
Quality of Multimedia Experience, Sensory Effects, MPEG-V, Subjective Quality Assessment, World Wide Web, Sensory Experience
EN
Yarra Valley, Australia
jul
278-283
https://www.itec.aau.at/bib/files/QoMEX2012_UserStudy.pdf
IEEE
2012.07.07
registered
Investigating the Impact of Sensory Effects on the Quality of Experience and Emotional Response in Web Videos
http://www.qomex2012.org
2012
Nowadays video is an important part of the Web and Web sites like YouTube, Hulu, etc. count millions of users consuming their content every day. However, these Web sites mainly use media players based on proprietary browser plug-ins (i.e., Adobe Flash) and do not leverage adaptive streaming systems. This paper presents a seamless integration of the recent MPEG standard on Dynamic Adaptive Streaming over HTTP (DASH) in the Web using the HTML5 video element. Therefore, we present DASHJS, a JavaScript-based MPEG-DASH client which adopts the Media Source API of Google’s Chrome browser to present a flexible and potentially browser independent DASH client. Furthermore, we present the integration of WebM based media segments in DASH giving a detailed description of the used container format structure and a corresponding Media Presentation Description (MPD). Our preliminary evaluation demonstrates the bandwidth adaption capabilities to show the effectiveness of the system.
Bucharest, Romania
Rainer, Benjamin
Lederer, Stefan
Mueller, Christopher
Timmerer, Christian
Proceedings of the 20th European Signal Processing Conference (EUSIPCO)
Pesquet-Popescu, Béatrice
Burileanu, Corneliu
EN
Bucharest, Romania
aug
1519-1523
https://www.itec.aau.at/bib/files/DASHJS-Eusipco.pdf
European Signal Processing (EURASIP) Society
2012.08.30
registered
A Seamless Web Integration of Adaptive HTTP streaming
2012
Dynamic Adaptive Streaming over HTTP (DASH) is a convenient approach to transfer videos in an adaptive and dynamic way to the user. As a consequence, this system provides high bandwidth flexibility and is especially suitable for mobile use cases where the bandwidth variations are tremendous. In this paper we have integrated the Scalable Video Coding (SVC) extensions of the Advanced Video Coding (AVC) standard into the recently ratified MPEG-DASH standard. Furthermore, we have evaluated our solution under restricted conditions using bandwidth traces from mobile environments and compared it with an improved version of our MPEG-DASH implementation using AVC as well as major industry solutions.
Bucharest, Romania
Mueller, Christopher
Renzi, Daniele
Lederer, Stefan
Battista, Stefano
Timmerer, Christian
Proceedings of the 20th European Signal Processing Conference (EUSIPCO12)
Burileanu, Corneliu
Pesquet-Popescu, Béatrice
Dynamic Adaptive Streaming over HTTP, MPEG-DASH, Scalable Video Coding, Evaluation, Mobile Networks, Vehicular Mobility
EN
Bucharest, Romania
aug
2208-2212
https://www.itec.aau.at/bib/files/mueller_svc-dash.pdf
European Signal Processing (EURASIP) Society
2012.08.31
registered
Using Scalable Video Coding for Dynamic Adaptive Streaming over HTTP in Mobile Environments
2012
MPEGs' Dynamic Adaptive Streaming over HTTP (MPEG-DASH) is an emerging standard designed for media delivery over the top of existing infrastructures and able to handle varying bandwidth conditions during a streaming session. This requirement is very important, specifically within mobile environments and, thus, DASH could potentially become a major driver for mobile multimedia streaming. Hence, this paper provides a detailed evaluation of our implementation of MPEG DASH compared to the most popular propriety systems, i.e., Microsoft Smooth Steaming, Adobe HTTP Dynamic Streaming, and Apple HTTP Live Streaming. In particular, these systems will be evaluated under restricted conditions which are due to vehicular mobility. In anticipation of the results, our prototype implementation of MPEG-DASH can very well compete with state-of-the-art solutions and, thus, can be regarded as a mature standard ready for industry adaption.
New York, NY, USA
Mueller, Christopher
Lederer, Stefan
Timmerer, Christian
Proceedings of the Fourth Annual ACM SIGMM Workshop on Mobile Video (MoVid12)
Hefeeda, Mohamed
Hsu, Cheng-Hsin
Chatterjee, Mainak
Venkatasubramanian, Nalini
Ganguly, Samrat
Dynamic Adaptive Streaming over HTTP, MPEG-DASH, Microsoft Smooth Streaming, Adobe HTTP Dynamic Streaming, Evaluation, Apple HTTP Live Streaming, Mobile Networks, Vehicular Mobility
EN
Chapel Hill, North Carolina, USA
feb
37-42
https://www.itec.aau.at/bib/files/p37-mueller.pdf
ACM
2012.02.24
registered
An Evaluation of Dynamic Adaptive Streaming over HTTP in Vehicular Environments
2012
Multimedia streaming technologies based on the Hypertext Transfer Protocol (HTTP) are very popular and used by many content providers such as Netflix, Hulu, and Vudu. Recently, ISO/IEC MPEG has ratified Dynamic Adaptive Streaming over HTTP (DASH) which extends the traditional HTTP streaming with an adaptive component addressing the issue of varying bandwidth conditions that users are facing in networks based on the Internet Protocol (IP). Additionally, industry has already deployed several solutions based on such an approach which simplifies large scale deployment because the whole streaming logic is located at the client. However, these features may introduce drawbacks when multiple clients compete for a network bottleneck due to the fact that the clients are not aware of the network infrastructure such as proxies or other clients. This paper identifies these negative effects and the evaluation thereof using MPEG-DASH and Microsoft Smooth Streaming. Furthermore, we propose a novel adaptation algorithm introducing the concept of fairness regarding a cluster of clients. In anticipation of the results we can conclude that we achieve more efficient bottleneck bandwidth utilization and less quality switches.
San Diego, CA, USA
Mueller, Christopher
Lederer, Stefan
Timmerer, Christian
Proceedings of the IEEE Conference on Visual Communications and Image Processing Conference (VCIP 2012)
Aizawa, Kiyoharu
Kuo, Jay
Liu, Zicheng
EN
San Diego, USA
nov
6
https://www.itec.aau.at/bib/files/PID2500949.pdf
IEEE
2012.11.29
registered
A Proxy Effect Analysis and Fair Adaptation Algorithm for Multiple Competing Dynamic Adaptive Streaming over HTTP Clients
http://www.vcip2012.org
2012
Adaptive HTTP streaming got lot of attention in recent years and with dynamic adaptive streaming over HTTP (DASH) a standard is available. Many papers cover this topic and present their research results, but unfortunately all of them use their own private dataset which – in most cases – is not publicly available. Hence, it is difficult to compare, e.g., adaptation algorithms in an objective way due to the lack of a common dataset which shall be used as basis for such experiments. In this paper, we present our DASH dataset featuring our DASHEncoder, an open source DASH content generation tool. We also provide basic evaluations of the different segment lengths, the influence of HTTP server settings, and, in this context, we show some of the advantages as well as problems of shorter segment lengths.
New York, NY, USA
Lederer, Stefan
Mueller, Christopher
Timmerer, Christian
Proceedings of the Third Annual ACM SIGMM Conference on Multimedia Systems (MMSys12)
Claypool, Mark
Griwodz, Carsten
Mayer-Patel, Ketan
Dynamic Adaptive Streaming over HTTP, DASH, Dataset, Encoder, Content Generation Tool
EN
Chapel Hill, North Carolina, USA
feb
89-94
https://www.itec.aau.at/bib/files/p89-lederer.pdf
ACM
2012.02.22
registered
Dynamic Adaptive Streaming over HTTP Dataset
2012
Sophia Antipolis
Liu, Yaning
Geurts, Joost
Rainer, Benjamin
Lederer, Stefan
Mueller, Christopher
Timmerer, Christian
CCNx Community Meeting (CCNxConn 2012)
Carofiglio, Giovanna
CCN, DASH
EN
Sophia Antipolis, France
sep
1-1
https://www.itec.aau.at/bib/files/DashOverCCN.pdf
Parc
2012.09.12
registered
DASH over CCN: A CCN use-case for a Social Media based collaborative project
http://www.ccnx.org/ccnxcon2012/
2012
In this paper we demonstrate our MPEG-DASH evaluation suite, which comprises several components on the client side as well as on the server side. The major client components are the VLC DASH plugin, libDASH, and DASH-JS, a JavaScript-based DASH client. These tools enable performance tests on various platforms, e.g., Windows and Linux as well as mobile platforms such as Android. Moreover, due to their flexible structure it is possible to integrate adaptation logics and evaluate them under consistent conditions. On the server side we provide the content generation tool DASHEncoder, our MPEG-DASH datasets well as the MPEG-DASH conformance validator.
San Diego, CA, USA
Lederer, Stefan
Mueller, Christopher
Rainer, Benjamin
Waltl, Markus
Timmerer, Christian
Proceedings of the IEEE Conference on Visual Communications and Image Processing Conference (VCIP 2012)
Izquierdo, Ebroul
Wang, Xin
MPEG DASH, Open Source, Demo
EN
San Diego, USA
nov
1-1
https://www.itec.aau.at/bib/files/open-source_MPEG-DASH_evaluation_suite.pdf
IEEE
2012.11.29
registered
An open source MPEG DASH evaluation suite
http://www.vcip2012.org
2012
This paper presents our peer-assisted Dynamic Adaptive Streaming over HTTP (pDASH) proposal as well as an evaluation based on our DASH simulation environment in comparison to conventional approaches, i.e., non-peer-assisted DASH. Our approach maintains the standard conformance to MPEG-DASH enabling an easy and straightforward way of enhancing a streaming system with peer assistance to reduce the bandwidth and infrastructure requirements of the content/service provider. In anticipation of the results our system achieves a bandwidth reduction of Content Distribution Networks (CDN) and as a consequence the corresponding infrastructure costs of the content/service providers by up to 25% by leveraging the upstream capacity of neighboring peers. Furthermore, the cost savings have been evaluated using a cost model that is based on the current Amazon CloudFront pricing scheme. Furthermore, we have also evaluated the performance impact that various combinations of quality levels of the content could have in a peer-assisted streaming system as well as the client behavior in such an environment.
Munich, Germany
Lederer, Stefan
Mueller, Christopher
Timmerer, Christian
Proceedings of the 19th International Packet Video Workshop (PV 2012)
Guillemot, Christine
Chakareski, Jacob
Steinbach, Eckehard
Peer-Assisted Streaming, MPEG-DASH, Dynamic Adaptive Streaming over HTTP, CDN Bandwidth Reduction, Peer-to-Peer Streaming.
EN
Munich, Germany
may
1-6
https://www.itec.aau.at/bib/files/Paper53.pdf
IEEE
2012.05.10
registered
Towards Peer-Assisted Dynamic Adaptive Streaming over HTTP
2012
Cloud computing is currently gaining enormous momentum due to a number of promised benefits: ease of use in terms of deployment, administration, and maintenance, along with high scalability and flexibility to create new services. However, as more personal and business applications migrate to the cloud, service quality will become an important differentiator between providers. In particular, quality of experience as perceived by users has the potential to become the guiding paradigm for managing quality in the cloud. In this article, we discuss technical challenges emerging from shifting services to the cloud, as well as how this shift impacts QoE and QoE management. Thereby, a particular focus is on multimedia cloud applications. Together with a novel QoE-based classification scheme of cloud applications, these challenges drive the research agenda on QoE management for cloud applications.
New York, NY, USA
Hoßfeld, Tobias
Schatz, Raimund
Varela, Martin
Timmerer, Christian
10.1109/MCOM.2012.6178831
Communications Magazine, IEEE
cloud computing, multimedia computing, software quality, QoE management, QoE-based classification scheme, multimedia cloud applications, quality management, quality of experience, service quality, Cloud computing, Multimedia communication, Quality of service, Streaming media
EN
apr
4
28-36
https://www.itec.aau.at/bib/files/06178831.pdf
IEEE Communications Society
Challenges of QoE Management for Cloud Applications
50
2012
Existing and future media ecosystems need to cope with the ever-increasing heterogeneity of networks, devices, and user characteristics collectively referred to as (usage) context. The key to address this problem is media adaptation to various and dynamically changing contexts in order to provide a service quality that is regarded as satisfactory by the end user. The adaptation can be performed in many ways and at different locations, e.g., at the edge and within the network resulting in a substantial number of issues to be integrated within a media ecosystem. This paper describes research challenges, key innovations, target research outcomes, and achievements so far for edge and in-network media adaptation by introducing the concept of Scalable Video Coding (SVC) tunneling.
Los Alamitos, CA, USA
Grafl, Michael
Timmerer, Christian
Waltl, Markus
Xilouris, George
Zotos, Nikolaos
Renzi, Daniele
Battista, Stefano
Chernilov, Alex
Proceedings of the 2012 IEEE International Conference on Telecommunications and Multimedia (TEMU 2012)
http://dx.doi.org/10.1109/TEMU.2012.6294710
Pallis, Evangelos
Zacharopoulos, Vassilios
Kourtis, Anastasios
distributed adaptation decision-taking; SVC tunneling; research challenges; in-network adaptation; content-aware networking
EN
Heraklion, Greece
jul
6
https://www.itec.aau.at/bib/files/TEMU2012_mgrafl.pdf
IEEE
TEMU
2012.07.31
registered
Distributed Adaptation Decision-Taking Framework and Scalable Video Coding Tunneling for Edge and In-Network Media Adaptation
2012
This work presents a new dimension for Quality of Experience (QoE), i.e., sensory information. Sensory information enhances the user experience by providing additional so-called sensory effects (e.g., wind, light, vibration) which are rendered together with multimedia content. Furthermore, the work describes two subjective quality assessments conducted in this area including their results.
Los Alamitos, CA, USA
Waltl, Markus
Proceedings of the 12th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM)
10.1109/WoWMoM.2011.5986375
Gerla, Mario
Mingozzi, Enzo
Chatterjee, Mainak
Passarella, Andrea
Sensory Information, MPEG-V, Subjective Quality Assessments, Quality of Experience
EN
Lucca, Italy
jun
3
https://www.itec.aau.at/bib/files/wowmom2011_mw.pdf
IEEE
2011.06.22
poster
The Next Dimension of Video Experience: Sensory Effects
2011
More and more content in various formats become available via the World Wide Web (WWW). Currently available Web browsers are able to access and interpret these contents (i.e., Web videos, text, image, and audio). These contents stimulate only senses like audition or vision. Recently, it has been proposed to stimulate also other senses while consuming multimedia content through so-called sensory effects. These sensory effects aim to enhance the ambient experience by providing effects, such as, light, wind, vibration, etc. The effects are represented as Sensory Effect Metadata (SEM) which is associated to multimedia content and is rendered on devices like fans, vibration chairs, or lamps. In this paper we present a plug-in for the Mozilla Firefox browser which is able to render such sensory effects that are provided via the WWW. Furthermore, the paper describes two user studies conducted with the plug-in and presents the results achieved.
Klagenfurt, Austria
Waltl, Markus
Timmerer, Christian
Rainer, Benjamin
Hellwagner, Hermann
Alpen-Adria-Universität Klagenfurt
World Wide Web, MPEG-V, Subjective Quality Assessment, Sensory Effects, Quality of Multimedia Experience
EN
jul
TR/ITEC/11/1.13
12
https://www.itec.aau.at/bib/files/Waltl_TR11113.pdf
Alpen-Adria Universität Klagenfurt
Sensory Effects for Ambient Experiences in the World Wide Web
2011
More and more multimedia content is becoming available via the World Wide Web (WWW). These contents stimulate only senses like hearing or vision. Recently, it has been proposed to stimulate also other senses while consuming multimedia content, through so-called sensory effects. These sensory effects aim at enhancing the user’s viewing experience by providing effects such as light, wind, vibration, etc. These effects are represented as Sensory Effect Metadata (SEM) which is associated to multimedia content and is rendered on devices like fans, lamps, or vibration chairs. In this paper, we present a plug-in for Web browsers which is able to render such sensory effects provided via Web content, and we describe a demonstrator that uses this plug-in to control an amBX system.
Los Alamitos, CA, USA
Waltl, Markus
Rainer, Benjamin
Timmerer, Christian
Hellwagner, Hermann
Proceedings of the Workshop on Multimedia on the Web (MMWeb) 2011
Böszörmenyi, Laszlo
Marques, Oge
Lux, Mathias
Klamma, Ralf
Quality of Experience, Sensory Experience, MPEG-V, Web Browser Plug-in, World Wide Web
EN
Graz, Austria
sep
1-3
https://www.itec.aau.at/bib/files/MMWeb2011_mwbrcthh.pdf
IEEE
2011.09.08
poster
Sensory Experience for Videos on the Web
2011
This paper describes the implementation of a VLC media player plugin enabling Dynamic Adaptive Streaming over HTTP (DASH). DASH is an emerging ISO/IEC MPEG and 3GPP standard for HTTP streaming. It aims to standardize formats enabling segmented progressive download by exploiting existing Internet infrastructure as such. Our implementation of these formats as described in this paper is based on the well-known VLC. Hence, it is fully integrated into the VLC structure and has been also submitted to the VLC development team for consideration in future releases of VLC. Therefore, it is licensed under the GNU Lesser General Public License (LGPL). The plugin provides a very flexible structure that could be easily extended with respect to different adaptation logics or profiles of the DASH standard. As a consequence, the plugin enables the integration of a variety of adaptation logics and comparison thereof, making it attractive for the research community.
New York, NY, USA
Mueller, Christopher
Timmerer, Christian
Proceedings of the 19th ACM international conference on Multimedia
10.1145/2072298.2072429
Candan, Kasim Selcuk
Panchanathan, Sethuraman
Prabhakaran, Balakrishnan
Sundaram, Hari
Feng, Wu-Chi
Sebe, Nicu
3GPP, DASH, HTTP streaming, MPEG, dynamic adaptive streaming over HTTP, video
EN
Scottsdale, Arizona, USA
nov
723-726
https://www.itec.aau.at/bib/files/p723-muller.pdf
ACM
MM
2011.11.29
registered
A VLC media player plugin enabling dynamic adaptive streaming over HTTP
2011
In this paper, we present a multimedia test-bed enabling session mobility in the context of the emerging ISO/IEC MPEG standard, Dynamic Adaptive Streaming over HTTP (DASH). In general, session mobility is defined as the transfer of a running streaming session from one device to another device where it may need to be consumed in an adaptive way. The two main challenges are: (1) taking into account the new context of the device (e.g., capabilities) to which the session is transferred and (2) performing the actual transfer in a seamless and interoperable way. Our system addresses both challenges supported by a prototype implementation integrated into VLC. In anticipation of the results we can conclude that interoperability is achieved adopting existing standards while the performance of the system does not depend on these standards. That is, the modules responsible for the performance are usually not defined within such standards and left out for competition. However, our system is designed in an extensible way and is able to accommodate this fact.
New York, NY, USA
Mueller, Christopher
Timmerer, Christian
Proceedings of the Second Annual ACM SIGMM Conference on Multimedia Systems (MMSys)
Mayer-Patel, Ketan
Begen, Ali
EN
San Jose, CA, USA
feb
271-276
https://www.itec.aau.at/bib/files/mueller_A_Test_Bed_for_DASH_featuring_Session_Mobility.pdf
ACM
2011.02.25
registered
A Test-Bed for the Dynamic Adaptive Streaming over HTTP featuring Session Mobility
2011
Adaptive video streaming based on TCP/HTTP is becoming popular because of its ability to adapt to changing network conditions. We present an in-depth experimental analysis of the use of HTTP-based request-response streams for video streaming. In this scheme, video fragments are fetched by a client from the server, in smaller units called chunks, potentially via multiple parallel HTT P requests (TCP connections). A model for the achievable throughput is formulated.The model is validated by a broad range of streaming experiments, including an evaluation of TCP-friendliness. Our findings include that request-response streams are able to scale with the available bandwidth by increasing the chunk size or the number of concurrent streams. Several combinations of system parameters exhibiting TCP-friendliness are presented. We also evaluate the video streaming performance in terms of video quality in the presence of packet loss. Multiple request-response streams are able to maintain satisfactory performance, while a single TCP connection deteriorates rapidly with increasing packet loss. The results provide experimental evidence that HTTP-based request-response streams are a good alternative to classical TCP streaming
New York, NY, USA
Kuschnig, Robert
Kofler, Ingo
Hellwagner, Hermann
Proceedings of the Second Annual ACM SIGMM Conference on Multimedia Systems (MMSys)
10.1145/1943552.1943585
Mayer-Patel, Ketan
Begen, Ali
EN
San Jose, CA, USA
feb
245-256
https://www.itec.aau.at/bib/files/mmsys11_kuschnig_preprint.pdf
ACM
2011.02.25
registered
Evaluation of HTTP-based request-response streams for internet video streaming
2011
This chapter proposes a novel concept towards the deployment of a networked ‘Media Ecosystem’. The proposed solution is based on a flexible co- operation between providers, operators, and end-users, finally enabling every user first to access the offered multimedia services in various contexts, and second to share and deliver his own audiovisual content dynamically, seamlessly, and transparently to other users. Towards this goal, the proposed concept provides content-awareness to the network environment, network- and user context- awareness to the service environment, and adapted services/content to the end user for his best service experience possible, taking the role of a consumer and/or producer.
Berlin, Heidelberg, New York
Koumaras, Harilaos
Negru, Daniel
Borcoci, Eugen
Koumaras, Vaios
Troulos, Costas
Lapid, Yael
Pallis, Evangelos
Sidibé, Mamadou
Pinto, Antonia
Gardikis, Georgios
Xilouris, George
Timmerer, Christian
The Future Internet
10.1007/978-3-642-20898-0_26
Domingue, John
Galis, Alex
Gavras, Anastasius
Zahariadis, Theodore
Lambert, Dave
Cleary, Frances
Daras, Petros
Krco, Srdjan
Müller, Henning
Li, Man-Sze
Schaffers, Hans
Lotz, Volkmar
Alvarez, Federico
Stiller, Burkhard
Karnouskos, Stamatis
Avessta, Susanna
Nilsson, Michael
Future Internet, Multimedia Distribution, Content Awareness, Net- work Awareness, Content/Service Adaptation, Quality of Experience, Quality of Services, Service Composition, Content-Aware Network
EN
may
369-380
https://www.itec.aau.at/bib/files/FIA-2011.pdf
Springer
Lecture Notes in Computer Science
Media Ecosystems: A Novel Approach for Content-Awareness in Future Networks
6656
2011
Today's omnipresent demand for access to multimedia content via diverse devices places new challenges on efficient content delivery. This work introduces the concept of Scalable Video Coding (SVC) tunneling developed in the EU FP7 ALICANTE project and shows that the quality impact of the transcoding steps for a transcoding chain from MPEG-2 to SVC and back to MPEG-2 accumulates to a PSNR reduction of up to 2.1 dB for transcoding at fixed target bitrate points. We also discuss research challenges and open issues in SVC tunneling.
Los Alamitos, CA, USA
Grafl, Michael
Proceedings of the 12th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM)
10.1109/WoWMoM.2011.5986152
Gerla, Mario
Mingozzi, Enzo
Chatterjee, Mainak
Passarella, Andrea
Content-aware networking; scalable video coding; SVC tunneling; transcoding; multimedia distribution
EN
Lucca, Italy
jun
3
https://www.itec.aau.at/bib/files/WoWMoM2011_mgrafl.pdf
IEEE
2011.06.22
poster
SVC Tunneling for Media-Aware Content Delivery: Impact on Video Quality
2011
Today's omnipresent demand for access to multimedia content via diverse devices places new challenges on efficient content delivery. While the Scalable Video Coding (SVC) extension of Advanced Video Coding (AVC) has proven to be a useful tool for the advanced delivery of video content, it has not yet found major adoption in practice. This paper introduces the concept of SVC tunneling developed in the EU FP7 ALICANTE project, which attempts to provide device-independent access to media resources at reduced network load. For SVC tunneling, video transcoding is performed at the ingress/egress points of the network, which may impact the video quality. We show that the quality impact of these transcoding steps for a transcoding chain from MPEG-2 to SVC and back to MPEG-2 accumulates to a PSNR reduction of up to 2.1 dB for transcoding at fixed target bitrates. We also discuss research challenges and open issues in SVC tunneling.
Los Alamitos, CA, USA
Grafl, Michael
Timmerer, Christian
Hellwagner, Hermann
Proceedings of the 2011 IEEE International Conference on Multimedia and Expo (ICME 2011)
10.1109/ICME.2011.6012239
Cheng, Irene
Fernandez, Gabriel
Wang, Haohong
Content-aware networking; scalable video coding; quality of service; SVC tunneling; transcoding; multimedia distribution
EN
Barcelona, Spain
jul
4
https://www.itec.aau.at/bib/files/WoMAN2011_paper_209.pdf
IEEE
ICME
2011.07.11
registered
Quality Impact of Scalable Video Coding Tunneling for Media-Aware Content Delivery
2011
The term “trustworthy” has a very precise connotation in the European Community’s FP7 research program. For a network to be qualified as trustworthy, it needs to be secure, reliable and resilient to attacks and operational failures. Furthermore, quality of service must be guaranteed, while protecting user data, ensuring privacy and providing usable and trusted tools to support users in their security management. As such, the Trustworthy Internet not only has to include mechanisms, architectures and networking infrastructures that intrinsically provide basic security guarantees, but it also has to ensure users, service providers and application providers alike that their requirements in terms of Quality of Experience, manageability and efficiency are fully met. Providing such combined guarantees in a rapidly evolving, complex infrastructure such as the Internet requires solving challenging issues that encompass many fields of theoretical and applied information engineering. These issues span all levels of the protocol stack, ranging from finding new intrinsically secure transmission systems, to radically novel routing models, to new architectures for data dissemination and for interconnecting an unprecedented number of devices and appliances. This book aims at representing a view of the state of the “Trustworthy Internet” as we enter the second decade of our century. The material included in this book originated from the 21st International Tyrrhenian Workshop on Digital Communications, an event traditionally organized by CNIT, the Italian inter-university consortium for telecommunication research. The workshop comprised either invited contributions from renowned researchers with complementary expertise, as well as independent, peer-reviewed contributions stimulated through an open call for papers. This volume includes a selected subset of the workshop papers. Each contribution has been edited and extended after the workshop, taking into account the discussions carried out during the event, incorporating when appropriate additional technical material. Furthermore, the authors have strived to complement the specific technical aspects they present with background material devised to more comprehensively introduce the reader to the specific topic of trustworthiness tackled.
Berlin, Heidelberg, New York
Grafl, Michael
Timmerer, Christian
Hellwagner, Hermann
Negru, Daniel
Borcoci, Eugen
Renzi, Daniele
Mevel, Anne-Lore
Chernilov, Alex
Trustworthy Internet
10.1007/978-88-470-1818-1_26
Blefari-Melazzi, Nicola
Bianchi, Giuseppe
Salgarelli, Luca
884701817X
978-8847018174
EN
jun
11
https://www.itec.aau.at/bib/files/SVC4CAN_chapter_v1.0.pdf
Springer
Scalable Video Coding in Content-Aware Networks: Research Challenges and Open Issues
2011
The term Universal Multimedia Experience (UME) has gained momentum and is well recognized within the research community. As this approach puts the user into the center stage, additional complexity is added to the overall quality assessment problem which calls for a scientific framework to capture, measure, quantify, judge, and explain the user experience. In previous work we have proposed the annotation of multimedia content with sensory effect metadata that can be used to stimulate also other senses than vision or audition. In this paper we report first results obtained from subjective tests in the area of sensory effects attached to traditional multimedia presentations such as movies that shall lead to an enhanced, unique, and worthwhile user experience.
Los Alamitos, CA, USA
Waltl, Markus
Timmerer, Christian
Hellwagner, Hermann
Proceedings of the 11th International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS'10)
Leonardi, Riccardo
Migliorati, Pierangelo
Cavallaro, Andrea
9781424478484
Sensory Information, MPEG-V
EN
Desenzano del Garda, Italy
apr
1-4
https://www.itec.aau.at/bib/files/wiamis2010_mwcthh.pdf
IEEE
2010.04.13
poster
Increasing the User Experience of Multimedia Presentations with Sensory Effects
2010
In previous and related work sensory effects are presented as a tool for increasing the user experience of multimedia presentations by stimulating also other senses than vision or audition. In this paper we primarily investigated the relationship of the Quality of Experience (QoE) due to various video bit-rates of multimedia contents annotated with sensory effects (e.g., wind, vibration, light). Therefore, we defined a subjective quality assessment methodology based on standardized methods. The paper describes the test environment, its setup, and conditions in detail. Furthermore, we experimented with a novel voting device that allows for continuous voting feedback during a sequence in addition to the overall quality voting at the end of each sequence. The results obtained from the subjective quality assessment are presented and discussed thoroughly. In anticipation of the results we can report an improvement of the quality of the multimedia experience thanks to the sensory effects.
Los Alamitos, CA, USA
Waltl, Markus
Timmerer, Christian
Hellwagner, Hermann
Proceedings of the 2nd International Workshop on Quality of Multimedia Experience (QoMEX'10)
10.1109/QOMEX.2009.5246962
Perkis, Andrew
Möller, Sebastian
Svensson, Peter
Reibman, Amy
9781424469581
Sensory Information, MPEG-V
EN
Trondheim, Norway
jun
124-129
https://www.itec.aau.at/bib/files/qomex2010_mwcthh.pdf
IEEE
2010.06.21
poster
Improving the Quality of Multimedia Experience through Sensory Effects
http://www.qomex2010.org
2010
The World Wide Web (WWW) is one of the main entry points to access and consume Internet content in various forms. In particular, the Web browser is used to access different types of media (i.e., text, image, audio, and video) and on some platforms is the only way to access the vast amount of information on the Web. Recently, it has been proposed to stimulate also other senses than vision or audition while consuming multimedia content through so- called sensory effects, with the aim to increase the user’s Quality of Experience (QoE). The effects are represented as Sensory Effects Metadata (SEM) which is associated to traditional multimedia content and is rendered (synchronized with the media) on sensory devices like fans, vibration chairs, lamps, etc. In this paper we provide a principal investigation of whether the sensory effects are ready for the WWW and, in anticipation of the result, we propose how to embed sensory effect metadata within Web content and the synchronized rendering thereof.
Aachen, Germany
Timmerer, Christian
Waltl, Markus
Hellwagner, Hermann
Proceedings of the Workshop on Interoperable Social Multimedia Applications (WISMA 2010)
Carreras, Anna
Delgado, Jaime
Maroñas, Xavier
Rodríguez, Víctor
MPEG-V
EN
Barcelona, Spain
may
57-60
https://www.itec.aau.at/bib/files/MPEG-V_v2.1.pdf
CEUR Workshop Proceedings (CEUR-WS.org)
2010.05.19
registered
Are Sensory Effects Ready for the World Wide Web?
2010
MPEG has developed various technologies for multimedia transport, such as MPEG-2 Transport Stream (TS) and ISO Media Base File Format. These technologies have been widely accepted and heavily used by various industries and applications, such as digital broadcasting, audio and video transport over the Internet, mobile phones, etc. In recent years, the Internet has become an important channel for the delivery of multimedia. As HTTP is widely used on the Internet, it has recently been used extensively for the delivery of multimedia content. However, there is no standard for HTTP- based streaming of MPEG media. MPEG intends to standardize a solution that addresses this need. This paper provides an overview of the recent Call of Proposals (CfP) for HTTP Streaming of MPEG Media, a new work item within ISO/IEC MPEG. In particular, it will provide an overview of existing systems and the outcome of the evaluation of the aforementioned CfP which has been conducted during the 93rd MPEG meeting in July 2010.
Agrate B.za, Italy
Timmerer, Christian
Mueller, Christopher
Proceedings of STreaming Day 2010
Bernardini, Riccardo
Rovati, Fabrizio
HTTP Streaming
EN
Udine, Italy
oct
4
https://www.itec.aau.at/bib/files/STDay-2010-v1.1.pdf
Rovati, Fabrizio
2010.09.17
registered
HTTP Streaming of MPEG Media
2010
Editor’s Note: Media applications are becoming increasingly complex. They handle many data formats, run across multiple platforms, and support a wide range of functions. This article describes a standardized set of protocols and APIs that provides efficient access to individual system components, enables rapid deployment of new applications, and improves portability. —Anthony Vetro
Los Alamitos, CA, USA
Timmerer, Christian
Chiariglione, Filippo
Preda, Marius
Doncel, Victor Rodriguez
10.1109/MMUL.2010.52
1070-986X
IEEE Multimedia
EN
sep
3
74-78
https://www.itec.aau.at/bib/files/mmu2010030074.pdf
IEEE
Accelerating Media Business Developments with the MPEG Extensible Middleware
http://doi.ieeecomputersociety.org/10.1109/MMUL.2010.52
17
2010
The demand for access to advanced, distributed media resources is nowadays omnipresent due to the availability of Internet connectivity almost anywhere, anytime, and with a huge amount of different devices. This calls for rethinking of the current Internet architecture by making the network aware of which content is actually transported. This paper introduces Scalable Video Coding (SVC) as a tool for Content-Aware Networks (CANs) which is currently researched as part of the EU FP7 ALICANTE project. The architecture of ALICANTE with respect to SVC and CAN is reviewed, use cases are described, and, finally, research challenges and open issues are discussed.
New York, NY, USA
Timmerer, Christian
Grafl, Michael
Hellwagner, Hermann
Negru, Daniel
Borcoci, Eugen
Renzi, Daniel
Mevel, Anne-Lore
Chernilov, Alex
Proceedings of the International Tyrrhenian Workshop on Digital Communications (ITWDC)
Blefari-Melazzi, Nicola
EN
Island of Ponza, Italy
sep
11
https://www.itec.aau.at/bib/files/SVC4CAN_v1.0.pdf
Springer
2010.09.08
registered
Scalable Video Coding in Content-Aware Networks: Research Challenges and Open Issues
2010
In this tutorial we present immersive future media technologies ranging from 3D video to sensory experiences. The former targets stereo and multi-view video technologies whereas the latter aims at stimulating other senses than vision or audition enabling an advanced user experiences through sensory effects.
New York, NY, USA
Timmerer, Christian
Müller, Karsten
Proceedings of the International Conference on Multimedia (MM '10)
10.1145/1873951.1874369
del Bimbo, Alberto
Chang, Shih-Fu
Smeulders, Arnold
Measurement, Experimentation, Human Factors, Standardization, Immersive Media, 3D Video, Stereo Video, Multi-view Video, Sensory Effects, MPEG-V, Quality of Experience
EN
Florence, Italy
oct
1781-1782
https://www.itec.aau.at/bib/files/tut08x-timmerer.pdf
ACM
2010.10.25
registered
Immersive Future Media Technologies: From 3D Video to Sensory Experiences
http://doi.acm.org/10.1145/1873951.1874369
2010
This paper proposes a novel virtual Content-Aware Network (CAN) layer as a part of a full layered architecture, focused, but not limited to, on multimedia distribution with Quality of Services (QoS) assurance. The overall system is based on a flexible cooperation between providers, operators and end-users, enabling users to access the offered multimedia services in various contexts and also to become private content providers. The paper introduces the main concepts and architecture for the main virtual network layer (i.e., CAN), exposing its role and interfaces among overall system layers. This work is a part of the starting effort inside of a new European FP7 ICT research project, ALICANTE.
Los Alamitos, CA, USA
Borcoci, Eugen
Negru, Daniel
Timmerer, Christian
Proceedings of the 3rd International Conference on Communication Theory, Reliability, and Quality of Service (CTRQ 2010)
10.1109/CTRQ.2010.35
Ata, Shingo
Borcoci, Eugen
Del Ser Lorente, Javier
Diaz, Michel
Pioro, Michal
Rodrigues, Joel
Segall, Zary
content-aware networking, network aware applications, quality of services, multimedia distribution, Future Internet
EN
jun
162-168
https://www.itec.aau.at/bib/files/05532769.pdf
IEEE
none
A Novel Architecture for Multimedia Distribution based on Content-Aware Networking
http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5532769&isnumber=5532402
2010