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CCOMP: Rate-Distortion Performance Comparison Of Contemporary Video Codecs:

Comparison Of Google/WebM VP8, AVC/H.264 and HEVC TMuC

This work gives an experimental primer on the current affairs in state-of-the-art video compression, focusing purely on rate-distortion performance under quantization or bitrate constraints and disregarding system complexity, delay and other domain-specific factors. Our comparison includes: the Advanced Video Coding (AVC/H.264) standard as instantiated by the VideoLAN x264 project, the VP8 codec as provided by the Google/WebM project and the High Efficiency Video Coding (HEVC) Test Model under Consideration (TMuC) that is currently under intensive development for joint standardization by ISO/IEC and ITU-T. We use six standard-definition progressive-scan test video sequences for our comparison, which correspond to video content that can be streamed to/from a variety of systems, including mobile devices. For the same video distortion (in terms of peak signal-to-noise ratio and structural similarity metric), our comparison reveals that, on average, HEVC TMuC v0.5 provides 46% bitrate reduction in comparison to AVC/H.264 (x264 v0.85.xx, optimizing for PSNR), which in turn provides 21% bitrate reduction in comparison to Google/WebM VP8.

E. Ohwovoriole and Y. Andreopoulos, "Rate-Distortion Performance Of Contemporary Video Codecs: Comparison Of Google/WebM VP8, AVC/H.264 and HEVC TMuC," Proc. London Communications Symposium (LCS), 2010. http://www.ee.ucl.ac.uk/lcs/

The full set of bitstreams and codec executables used for this comparison, along with the experimental scripts used, are available from HERE!

 

This page last modified 21 October, 2011 by [Yiannis Andreopoulos]


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