@TechReport{Ohlenroth2001, author = {Ohlenroth, Matthias and Hellwagner, Hermann}, institution = {Institute of Information Technology (ITEC), Klagenfurt University}, title = {Quality Adaptation Options of MPEG-4 Video Streams}, year = {2001}, address = {Klagenfurt, Austria}, month = dec, number = {TR/ITEC/01/1.03.}, language = {EN}, pages = {20} }