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Research on Influence of Different Bit Depth for Ultra High Definition Image Quality
Pages: 11-13
Year: Issue:  13
Journal: Video Engineering

Keyword:  ultra high definition imagebit depth;
Abstract: 通过挑选比较严格的超高清视频测试序列,采用x264压缩编码软件,计算量化比特数为10和8的各序列在不同码率下的PSNR值,以此来研究不同量化比特数对超高清图像质量损伤的影响.由实验数据得出,同一序列在同一码率下,量化比特数为10相比量化比特数为8的序列的PSNR高0.7 dB左右,也即量化比特数为10的序列相对量化比特数为8的序列码率节省5% ~20%左右.
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