发明名称 |
KEY FRAMES EXTRACTION FOR VIDEO CONTENT ANALYSIS |
摘要 |
<p>A method of extracting a key frame from a sequence of frames constituting a shot, each frame being constituted by a matrix of pixels, comprises: for each frame of the sequence of frames: computing (3) the optical flow of the frame compared to the following frame as a matrix of displacement of each pixel from the frame to the following frame; computing (5) a motion entropy measure based on the optical flow of the frame; selecting (7) as key frame the frame of the sequence of frames having the maximum motion entropy measure.</p> |
申请公布号 |
WO2010119410(A1) |
申请公布日期 |
2010.10.21 |
申请号 |
WO2010IB51620 |
申请日期 |
2010.04.14 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V.;SHAO, LING |
发明人 |
SHAO, LING |
分类号 |
G06K9/00;G11B27/28;H04N5/14 |
主分类号 |
G06K9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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