发明授权
US08248537B2 Video-signal processing method, program of video-signal processing method, recording medium having recorded thereon program of video-signal processing method, and video-signal processing apparatus
失效
视频信号处理方法，视频信号处理方法程序，在其上记录有视频信号处理方法的程序的记录介质和视频信号处理装置
- 专利标题： Video-signal processing method, program of video-signal processing method, recording medium having recorded thereon program of video-signal processing method, and video-signal processing apparatus
- 专利标题（中）： 视频信号处理方法，视频信号处理方法程序，在其上记录有视频信号处理方法的程序的记录介质和视频信号处理装置
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申请号： US11758740申请日： 2007-06-06
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公开(公告)号： US08248537B2公开(公告)日： 2012-08-21
- 发明人: Seiji Kimura , Masami Ogata
- 申请人： Seiji Kimura , Masami Ogata
- 申请人地址： JP Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- 优先权： JP2006-156936 20060606
- 主分类号： H04N9/64
- IPC分类号： H04N9/64
摘要：
A video-signal processing method for measuring a noise level of an input video signal includes the steps of detecting an intra-field or intra-frame feature for each region that is set in the input video signal, the intra-field or intra-frame feature representing a noise level in the input video signal within a field or frame; checking the intra-field or intra-frame feature against a noise-free-region threshold, and excluding regions with which the infra-field or intra-frame feature is less than the noise-free-region threshold from subjects of noise-level measurement; and outputting a result of noise-level measurement by statistically processing the intra-field or intra-frame features of regions remaining without being excluded.
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