[48] | Christian Timmerer, Carsten Griwodz, Ali Cengiz Begen, Thomas Stockhammer, Bernd Girod, Guest Editorial: Adaptive Media Streaming, In IEEE Journal on Selected Areas in Communications, IEEE Communications Society, vol. 32, no. 4, New York, NY, USA, pp. 681-683, 2014.
[bib] [pdf] |
[47] | Christian Timmerer, Benjamin Rainer, The Social Multimedia Experience, In IEEE Computer, IEEE Computer Society, vol. 47, no. 3, Los Alamitos, CA, USA, pp. 67-69, 2014.
[bib] [pdf] [abstract]
Abstract: Inter-destination multimedia synchronization and quality of experience are critical to the success of social TV, which integrates television viewing with social networking.
|
[46] | Mathias Lux, Desara Xhura, Alexander Kopper, User Intentions in Digital Photo Production: A Test Data Set, In MultiMedia Modeling (C Currin, F Hopfgartner, W Hurst, H Johansen, H Lee, N O’Connor, eds.), Springer International Publishing, Heidelberg, New York, pp. 172-182, 2014.
[bib] [abstract]
Abstract: Taking a photo with a digital camera or camera phone is a process triggered by a certain motivation. People want for instance to document the progress of a task, others want to preserve a moment of joy. In this contribution we present an openly available dataset with 1,309 photos along with annotations specifying the intentions of the photographers. This data set is the result of a large survey on Flickr and shall provide a common basis for joint research on user intentions in photo production. The survey data was validated using Amazon Mechanical Turk. Besides discussing the process of creating the data set we also present information of the structure and give statistics on the data set.
|
[45] | Mathias Lux, Glenn Macstravic, The LIRE Request Handler: A Solr Plug-In for Large Scale Content Based Image Retrieval, Chapter in MultiMedia Modeling (C Gurrin, F Hopfgartner, W Hurst, H Johansen, H Lee, N O’Connor, eds.), Springer, Heidelberg, New York, pp. 374-377, 2014.
[bib] |
[44] | M Zaharieva, M Riegler, M Del Fabro, Multimodal Synchronization of Image Galleries, In Working Notes Proceedings of the MediaEval 2014 Workshop (F De Natale, V Mezaris, N Conci, eds.), CEUR-WS, Vol-1263, pp. 1-2, 2014.
[bib] |
[43] | M Zaharieva, M Schopfhauser, M Del Fabro, M Zeppelzauer, Clustering and Retrieval of Social Events in Flickr, In Working Notes Proceedings of the MediaEval 2014 Workshop (G Petkos, S Papadopoulos, G Rizzo, V Mezaris, R Troncy, eds.), CEUR-WS, Vol-1263, pp. 1-2, 2014.
[bib] |
[42] | Xiaoxiao Luo, Qing Xu, Mateu Sbert, Klaus Schoeffmann, Video Navigation on Tablets with Multi-Touch Gestures, In Multimedia and Expo (ICME), 2014 IEEE International Conference on (Touradj Ebrahimi, Shipeng Li, Houjun Wang, Jie Yang, eds.), IEEE, Los Alamitos, CA, USA, pp. 6, 2014.
[bib] [doi] |
[41] | Christian Timmerer, Ali Cengiz Begen, Over the Top Content Delivery: State of the Art and Challenges Ahead, In Proceedings of the 2014 ACM Multimedia Conference (Kien Hua, Yong Rui, Ralf Steinmetz, Alan Hanjalic, Apostol Natsev, Wenwu Zhu, eds.), ACM, New York, NY, USA, pp. 1231-1232, 2014.
[bib] [doi] [pdf] [slides] [abstract]
Abstract: In this tutorial we present state of the art and challenges ahead in over-the-top content delivery. It particular, the goal of this tutorial is to provide an overview of adaptive media delivery, specifically in the context of HTTP adaptive streaming (HAS) including the recently ratified MPEG-DASH standard. The main focus of the tutorial will be on the common problems in HAS deployments such as client design, QoE optimization, multi-screen and hybrid delivery scenarios, and synchronization issues. For each problem, we will examine proposed solutions along with their pros and cons. In the last part of the tutorial, we will look into the open issues and review the work-in-progress and future research directions.
|
[40] | Christian Timmerer, Markus Waltl, Benjamin Rainer, Niall Murray, Sensory Experience: Quality of Experience Beyond Audio-Visual, Chapter in Quality of Experience: Advanced Concepts, Applications and Methods (Sebastian Möller, Alexander Raake, eds.), Springer, Heidelberg, pp. 351-365, 2014.
[bib] [abstract]
Abstract: 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.
|
[39] | Christian Timmerer, MPEG Column: 107th MPEG Meeting, In ACM SIGMultimedia Records, ACM, vol. 6, no. 1, New York, NY, USA, pp. 1-2, 2014.
[bib][url] |
[38] | Christian Timmerer, Markus Waltl, Benjamin Rainer, Stefan Lederer, Hermann Hellwagner, Enhancing 3D Video to enable a Fully Immersive Sensory Experiences, In IEEE Multimedia Communications Technical Committee E-Letter, IEEE Communications Society [online], vol. 9, no. 1, New York, NY, USA, pp. 23-26, 2014.
[bib][url] [pdf] |
[37] | Christian Timmerer, Christopher Mueller, Stefan Lederer, Adaptive Media Streaming over Emerging Protocols, In 2014 NAB Broadcast Engineering Conference Proceedings & CD (not available, ed.), National Association of Broadcasters (NAB), Washington DC, USA, pp. 4, 2014.
[bib] [pdf] [slides] [abstract]
Abstract: The emerging MPEG standard Dynamic Adaptive Streaming over HTTP (MPEG-DASH) is designed for media delivery over the top of existing infrastructures and enables smooth multimedia streaming towards heterogeneous devices including both wired and wireless environments. The MPEG-DASH standard was designed to work with HTTP-URLs but mandates neither the actual version nor which underlying protocols to be used. This paper will provide a detailed introduction into emerging protocols (HTTP/2.0 and beyond) to be used in the context of adaptive media streaming, specifically DASH.
|
[36] | Mario Taschwer, Medical Case Retrieval, In Proceedings of the ACM International Conference on Multimedia (n/a n/a, ed.), ACM, New York, NY, USA, pp. 639-642, 2014.
[bib] [doi] [pdf] [slides] |
[35] | Mario Taschwer, Textual Methods for Medical Case Retrieval, Technical report, Institute of Information Technology (ITEC), Alpen-Adria-Universität, no. TR/ITEC/14/2.01, Klagenfurt, Austria, pp. 50, 2014.
[bib] [pdf] [abstract]
Abstract: Medical case retrieval (MCR) is information retrieval in a collection of medical case descriptions, where descriptions of patients' symptoms are used as queries. We apply known text retrieval techniques based on query and document expansion to this problem, and combine them with new algorithms to match queries and documents with Medical Subject Headings (MeSH). We ran comprehensive experiments to evaluate 546 method combinations on the ImageCLEF 2013 MCR dataset. Methods combining MeSH query expansion with pseudo-relevance feedback performed best, delivering retrieval performance comparable to or slightly better than the best MCR run submitted to ImageCLEF 2013.
|
[34] | Klaus Schoeffmann, David Ahlstrom, Marco Andrea Hudelist, 3-D Interfaces to Improve the Performance of Visual Known-Item Search, In Multimedia, IEEE Transactions on, IEEE, vol. 16, no. 7, Los Alamitos, CA, USA, pp. 10, 2014.
[bib] [doi] |
[33] | Klaus Schoeffmann, Manfred Del Fabro, Tibor Szkaliczki, Laszlo Böszörmenyi, Jörg Keckstein, Keyframe extraction in endoscopic video, In Multimedia Tools and Applications, Springer US, New York, pp. 1-20, 2014.
[bib][url] [doi] |
[32] | Klaus Schoeffmann, The Stack-of-Rings Interface for Large-Scale Image Browsing on Mobile Touch Devices, In Proceedings of the ACM International Conference on Multimedia 2014 (ACM MM 2014) (Kien Hua, Yong Rui, Ralf Steinmetz, eds.), ACM, New York, NY, USA, pp. 1097-1100, 2014.
[bib] |
[31] | Klaus Schoeffmann, A User-Centric Media Retrieval Competition: The Video Browser Showdown 2012-2014, In IEEE MultiMedia, IEEE, vol. 21, no. 4, Los Alamitos, CA, USA, pp. 8-13, 2014.
[bib] |
[30] | Klaus Schoeffmann, Kevin Chromik, Laszlo Böszörmenyi, Video Navigation on Tablets with Multi-Touch Gestures, In Multimedia and Expo Workshops (ICMEW), 2014 IEEE International Conference on (Tao Mei, Rainer Stiefelhagen, Qi Tian, eds.), IEEE, Los Alamitos, CA, USA, pp. 6, 2014.
[bib] [doi] |
[29] | Stefan Rass, Benjamin Rainer, Vavti Matthias, Johannes Göllner, Andreas Peer, Stefan Schauer, Secure Communication over Software-Defined Networks, In International Conference on Software-Defined and Virtualized Future Wireless Networks (A n, ed.), Springer, R, I, pp. 0-0, 2014.
[bib] |
[28] | Stefan Rass, Benjamin Rainer, Numerical Computation of Multi-Goal Security Strategies, In Conference on Decision and Game Theory for Security (Lisa O'Conner, ed.), Springer, LA, CA, pp. 0-0, 2014.
[bib] |
[27] | Benjamin Rainer, Christian Timmerer, A Subjective Evaluation using Crowdsourcing of Adaptive Media Playout utilizing Audio-Visual Content Features, In In Proceedings of the IEEE Network Operations and Management Symposium (IEEE NOMS 2014) (Hanan Lutfiyya, Piotr Cholda, eds.), IEEE, Los Alamitos, CA, USA, pp. 0-0, 2014.
[bib][url] [pdf] [abstract]
Abstract: Synchronizing multimedia playback among geographically distributed clients is a challenging task and is referred to as Inter-Destination Media Synchronization (IDMS). In this paper we discuss the uses cases of IDMS as identified within the SocialSensor Project and based on these use cases we derive a novel Adaptive Media Playout (AMP) scheme which aims on carrying out the process of synchronizing the media playback at the clients to a given synchronization point. We propose how visual and acoustic features can be used to achieve a QoE-aware and context-aware AMP scheme.
|
[26] | Matthais Klusch, Patrick Kapahnke, Xiaoqi Cao, Benjamin Rainer, Christian Timmerer, Stefan Mangold, MyMedia: Mobile Semantic Peer-to-Peer Video Search and Live Streaming, In Proceedings of the 11th International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services (Moustafa Youssef, ed.), ACM, New York, NY, USA, pp. 10, 2014.
[bib][url] [pdf] [abstract]
Abstract: Mobile peer-to-peer (P2P) computing with applications such as for video on demand, file sharing, and video conferencing is gaining momentum based on new standards and technologies such as IETF PPSP, WiFi-Direct and BitTorrent live streaming. In this paper, we describe the mobile system MyMedia, that allows users to search, share and experience videos and live recordings using P2P and at the best quality possible with respect to available network capacity. In particular, the MyMedia system features a high-precision semantic P2P search and dynamic network-adaptive P2P live streaming of MPEG videos over HTTP based on the ISO/IEC standard MPEG-DASH from mobile to mobile devices in unstructured wireless P2P networks. These features have been integrated in the mobile application TIFF EventLive of the 54th Thessaloniki international film festival. The evaluation of their performance and device energy consumption, and a first user evaluation at the festival showed that the MyMedia system is suitable and accepted by users for its purpose in practice. The MyMedia system is available as open-source software for the Android operating system.
|
[25] | Benjamin Rainer, Christian Timmerer, Patrick Kapahnke, Matthias Klusch, Real-time Multimedia Streaming in Unstructured Peer-to-Peer Networks, In Proceedings of the 10th IEEE Consumer Communication and Networking Conference (CCNC) (available not, ed.), IEEE Consumer Communication and Networking Conference, Las Vegas, U.S.A, pp. n.a., 2014.
[bib] [pdf] [abstract]
Abstract: With the introduction of social networks like Facebook, Google+, and Twitter, the ways of sharing impressions of events has changed. We try to go a step further than social networks do. We offer the possibility to share events live with friends and colleagues. Our approach is based on semantic search in unstructured peer-to-peer (P2P) networks for querying content in mobile ad hoc networks and dynamic adaptive streaming over HTTP for the actual delivery of the real-time media impressions.
|
[24] | Benjamin Rainer, Christian Timmerer, A Generic Utility Model Representing the Quality of Sensory Experience, In ACM Transactions on Multimedia Computing, Communications, and Applications (TOMM) (Ralf Steinmetz, Gheorghita Ghinea, Christian Timmerer, Weisi Lin, Stephen Gulliver, Zheng-Jun Zha, Lei Zhang, Max Mühlhäuser, Alan Smeaton, eds.), ACM, New York, NY, USA, pp. 14:1-14:17, 2014.
[bib] [pdf] |