发明名称 |
Method for detecting and selecting good quality image frames from video |
摘要 |
A method of determining a quality value for an image frame is disclosed. The method comprises dividing (in a step 202) the frame into a plurality of tiles (906) and determining attributes (in a step 206) of each said tile based upon pixel values of the tile, and pixel values of a corresponding tile of a preceding frame. The method then establishes (in steps 210, 212) the quality value of the frame by testing the tile attributes of the frame against pre-determined criteria. The method then defines (in a step 220) the quality value of the frame depending upon results of the testing.
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申请公布号 |
US7916173(B2) |
申请公布日期 |
2011.03.29 |
申请号 |
US20050155632 |
申请日期 |
2005.06.20 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
CLARK JAMES DAVID;POLITIS GEORGE;ILBERY PETER WILLIAM MITCHELL |
分类号 |
H04N17/00;G06K9/36;G06K9/40;H04N5/14;H04N5/232;H04N17/06 |
主分类号 |
H04N17/00 |
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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