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26th May 2010, 11:31 | #1 | Link |
Codec Analysis Expert
Join Date: Feb 2006
Location: Moscow
Posts: 37
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MPEG-4 AVC/H.264 video codecs comparison
Dear doom9 experts,
Moscow State University Graphics & Multimedia Laboratory has finished 6-th H.264 codecs comparison. It is intended for practical researchers and developers in the field of high-end video compression. We have tested newest implementations of MPEG-4 AVC/H.264 video codecs and compare with XviD (MPEG-4 ASP) and Theora encoders. One of the main targets for this comparison was to test H.264 encoders for transcoding tasks for Movies and HDTV video content. Codec that were tested:
Summary report topics:
Enhancements in comparison to Previous H.264/AVC Comparison:
Some examples from the comparison report: This figure depicts RD-curve for bitrate/quality. Higher curve corresponds better encoding quality. This graph shows quality drop for Theora encoder at 1000kbps. This figure depicts bitrate handling graph – encoders with good bitarte handling methods has horizontal lines close to 1.0 value. This graph shows strange bitrate handling methods for MS Expression encoder. The more information for it could be found by other graphs analysis. This figure depicts the progress of the x264 encoder over several years. Y-axis shows encoding quality – encoders with its mark higher than other have better quality. X-axis shows encoding time – encoders with its marks placed to left are faster than other. Therefore encoders in upper-left corner are best – faster and have higher quality than competitors. More detailed analysis could be found at next page Best regards, Dr. Dmitriy Kulikov, Head of Video Codec Testing team, Graphics&Media Lab, Moscow State University
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Annual Video Codecs Comparisons by Lomonosov MSU Last edited by Dyomich; 16th June 2010 at 08:19. |
Tags |
codec, comparison, h.264, mpeg-4, msu |
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