Invention Grant
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
- Patent Title: Method and apparatus for assessing the quality of a video signal during encoding or compressing of the video signal
- Patent Title (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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Application No.: US13812868Application Date: 2011-07-29
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Publication No.: US09077972B2Publication Date: 2015-07-07
- Inventor: Savvas Argyropoulos , Bernhard Feiten , Marie-Neige Garcia , Peter List , Alexander Raake
- Applicant: Savvas Argyropoulos , Bernhard Feiten , Marie-Neige Garcia , Peter List , Alexander Raake
- Applicant Address: DE Bonn
- Assignee: DEUTSCHE TELEKOM AG
- Current Assignee: DEUTSCHE TELEKOM AG
- Current Assignee Address: DE Bonn
- Agency: Leydig, Voit & Mayer, Ltd.
- Priority: EP10171448 20100730
- International Application: PCT/EP2011/063091 WO 20110729
- International Announcement: WO2012/013777 WO 20120202
- Main IPC: H04N7/12
- IPC: 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
Abstract:
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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