MPEG-4 AVC/H.264 video codecs comparison
Posted: 28 May 2010 13:10
Dear video codecs 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.
http://compression.ru/video/codec_comparison/h264_2010
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:
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 dtailed analysis could be foud at next page
http://compression.ru/video/codec_comparison/h264_2010
Best regards,
Dr. Dmitriy Kulikov,
Head of Video Codec Testing team,
Graphics&Media Lab,
Moscow State University
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.
http://compression.ru/video/codec_comparison/h264_2010
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:
- DivX H.264
- Elecard H.264
- Intel® MediaSDK AVC/H.264
- MainConcept H.264
- Microsoft Expression Encoder
- Theora
- x264
- XviD (MPEG-4 ASP codec)
- Objective measurements (SSIM, PSNR, Average Advantage and etc.)
- Encoding speed
- Analysis of averaged objective results
- Leaders in different areas (Movies, HDTV)
- Options analysis for codecs
- Additional subjective analysis for video codes
- For psycho-visual enhancement in codecs analysis
- For fade processing analysis
- For animation movie compression analysis
- Codecs encoding quality progress over years
- Subjective comparison
- New codecs
- New sequences
- New type of special analysis for codecs
- Using natural sequences' special modifications
- Using synthetic sequences
- Not only H.264 Codecs (but also XviD, Theora) were tested
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 dtailed analysis could be foud at next page
http://compression.ru/video/codec_comparison/h264_2010
Best regards,
Dr. Dmitriy Kulikov,
Head of Video Codec Testing team,
Graphics&Media Lab,
Moscow State University