发明授权
US09077972B2 Method and apparatus for assessing the quality of a video signal during encoding or compressing of the video signal
有权
用于在视频信号的编码或压缩期间评估视频信号的质量的方法和装置
- 专利标题： Method and apparatus for assessing the quality of a video signal during encoding or compressing of the video signal
- 专利标题（中）： 用于在视频信号的编码或压缩期间评估视频信号的质量的方法和装置
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申请号： US13812868申请日： 2011-07-29
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公开(公告)号： US09077972B2公开(公告)日： 2015-07-07
- 发明人: Savvas Argyropoulos , Bernhard Feiten , Marie-Neige Garcia , Peter List , Alexander Raake
- 申请人： Savvas Argyropoulos , Bernhard Feiten , Marie-Neige Garcia , Peter List , Alexander Raake
- 申请人地址： DE Bonn
- 专利权人： DEUTSCHE TELEKOM AG
- 当前专利权人： DEUTSCHE TELEKOM AG
- 当前专利权人地址： DE Bonn
- 代理机构： Leydig, Voit & Mayer, Ltd.
- 优先权： EP10171448 20100730
- 国际申请： PCT/EP2011/063091 WO 20110729
- 国际公布： WO2012/013777 WO 20120202
- 主分类号： H04N7/12
- IPC分类号： H04N7/12 ; H04N11/02 ; H04N11/04 ; H04N19/85 ; H04N17/00 ; H04N19/61 ; H04N19/14 ; H04N19/154 ; H04N19/166 ; H04N19/177 ; H04N19/48 ; H04N21/6373 ; H04N21/647 ; H04N21/437 ; H04N21/24 ; H04N21/238
摘要：
A method for assessing the quality of a video signal during encoding or compressing of the video signal includes: estimating the quality (Qcod) of the video signal using one or more parameters; and using at least one additional parameter to adjust the estimated video signal quality, wherein the at least one additional parameter includes the key-frame rate (kfr) of the video signal as a Group of Pictures (GOP)-length-related parameter. Adjustment of the estimated video signal quality is in accordance with the following equation: Qcod=(a1*kfr+a2)*exp(b*br)+c; where a1, a2, b, and c are coefficients and br is the bit-rate of the video signal.
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