The scalable video coding extension (SVC) of the H.264/AVC standard<br>is widely considered for IPTV. SVCsupports a variety of scalability<br>modes, including temporal, spatial as well as coarse-grain and medium-grainquality<br>scalabilities. In this paper, we first give an overview of coarse-grain<br>quality scalability (CGS). We generate traces of CGS encodings of<br>long CIF resolution video sequences; the traces provide a simple<br>yet effective characterization of CGS encoded video for performance<br>evaluation of video transport systems, including IPTV systems. We<br>conduct a detailed statistical analysis of the CGS video traces.<br>We compare the bit rate-distortion (RD) and the bit rate variability-distortion<br>(VD) performances of scalable CGS encodings with those ofnon-scalable<br>SVC single layer encodings. We thus quantify the tradeoff between<br>the rate adaptability afforded by CGS encoding and the cost in terms<br>of RD efficiency compared to non-scalable single-layer video.
|Title of host publication||Proc. of the IEEE Consumer Communications and Networking Conference (CCNC)|
|State||Published - Jan 2010|