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引用次数: 3
摘要
通过PSNR和主观测试结果比较了三代视频编码标准的编码效率。采用统一的方法分析了MPEG-H HEVC、H.264/MPEG-4 AVC和H.262/MPEG-2视频参考实现的设计。对选定的HD格式序列的主观测试结果表明，HEVC编码器在平均使用约50%的比特率时，可以达到与符合AVC的编码器相当的主观广播质量。基于PSNR的比特率降低和基于编码/解码时间的复杂性HM8 MP vs. AVC HP vs. MPEG-2 MP在2,3,4.5,7和10mbit /s的比特率下使用广播应用的典型编码约束进行了测试。
MPEG video deployment in digital television: HEVC vs. AVC codec performance study
The coding efficiency of three generations of video coding standards is compared by means of PSNR and subjective testing results. A unified approach is applied to the analysis of designs of MPEG-H HEVC, H.264/MPEG-4 AVC, and H.262/MPEG-2 Video reference implementation. The results of subjective tests for selected HD format sequences indicate that HEVC encoders can achieve equivalent subjective broadcast quality as encoders that conform to AVC when using approximately 50% less bit rate on average. Bitrate reduction based on PSNR and complexity based on encoding/decoding time of HM8 MP vs. AVC HP vs. MPEG-2 MP are tested at bitrates of 2, 3, 4.5, 7 and 10 Mbit/s using the encoding constraints typical for broadcasting applications.
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