发明授权
- 专利标题： Apparatus for evaluating digital picture quality
- 专利标题（中）： 用于评估数字图像质量的设备
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申请号： US08775876申请日： 1997-01-02
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公开(公告)号： US06239834B1公开(公告)日： 2001-05-29
- 发明人: Satoshi Miyaji , Takahiro Hamada , Shuichi Matsumoto
- 申请人： Satoshi Miyaji , Takahiro Hamada , Shuichi Matsumoto
- 优先权： JP8-019308 19960111; JP8-139766 19960510
- 主分类号： H04N1700
- IPC分类号： H04N1700
摘要：
An apparatus for evaluating digital picture quality, includes a SNR calculation module for calculating a SNR based upon differences between data of video picture to be evaluated and data of original video picture, a module for calculating a power of AC component of overall data of one of the video pictures in a frame, and a weighting module for weighting the calculated SNR based upon the calculated power of the AC component.
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