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引用次数: 20
摘要
本文简要介绍了H.264/AVC和MPEG-4 Part 2标准，并着重分析了它们之间的区别。对H.264/AVC和MPEG-2 Part 2编码视频在不同序列和码率下的质量进行了实验比较。实验中使用的编解码器为JVT、jmver。10.2，作为H.264/AVC的实现，以及xvid版本。1.1.0，作为MPEG-4第2部分的实现。采用峰值信噪比(PSNR)和视频质量模型(VQM)作为客观质量指标。结果表明，JVT JM编解码器在客观质量和主观质量上都优于XviD编解码器。
Comparison of H.264/AVC and MPEG-4 part 2 coded video
brief overview of H.264/AVC and MPEG-4 Part 2 standards is given in this paper with focus on differences between them. Experimental quality comparison of H.264/AVC and MPEG-2 Part 2 coded video is done for several sequences and bit rates. The codecs used in the experiment are JVT JM ver. 10.2, as implementation of H.264/AVC, andXviD ver. 1.1.0, as implementation of MPEG-4 Part 2. The peak signal-to-noise ratio (PSNR) and video quality model (VQM) are used as objective quality metrics. The results obtained show that JVT JM codec outperforms XviD codec both in objective and subjective quality.
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