发明公开
- 专利标题： Method of estimating flicker on recorded video by camcorder
- 专利标题（中）： 摄像机视频摄像机
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申请号： EP14305795.8申请日： 2014-05-28
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公开(公告)号： EP2950523A1公开(公告)日： 2015-12-02
- 发明人: Baudry, Séverine , Chupeau, Bertrand , De Vito, Mario
- 申请人： Thomson Licensing
- 申请人地址： 1-5, rue Jeanne d'Arc 92130 Issy-les-Moulineaux FR
- 专利权人： Thomson Licensing
- 当前专利权人： Thomson Licensing
- 当前专利权人地址： 1-5, rue Jeanne d'Arc 92130 Issy-les-Moulineaux FR
- 代理机构： Huchet, Anne
- 主分类号： H04N5/235
- IPC分类号： H04N5/235 ; H04N21/8358 ; H04N5/913
摘要：
A method of estimating a flicker on a camcorded video firstly obtains a camcorded video with unknown camcording and display settings. The camcorded video includes a flicker and a watermark. Next, a spectrum of the camcorded video is obtained by using a temporal discrete Fourier transform. Then, a temporal frequency of the flicker is estimated by looking for a local maximum value in the spectrum of the camcorded video.
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