发明名称 |
METHODS AND APPARATUSES FOR HALF-FACE DETECTION |
摘要 |
<p>Classifier chains are used to determine quickly and accurately if a window or sub- window of an image contains a right face, a left face, a full face, or does not contain a face. After acquiring a digital image, an integral image is calculated based on the acquired digital image. Left-face classifiers are applied to the integral image to determine the probability that the window contains a left face. Right-face classifiers are applied to the integral image to determine the probability that the window contains a right face. If the probability of the window containing a right face and a left face are both greater than threshold values, then it is determined that the window contains a full face. Alternatively, if only one of the probabilities exceeds a threshold value, then it may be determined that the window contains only a left face or a right face.</p> |
申请公布号 |
WO2011000841(A1) |
申请公布日期 |
2011.01.06 |
申请号 |
WO2010EP59228 |
申请日期 |
2010.06.29 |
申请人 |
TESSERA TECHNOLOGIES IRELAND LIMITED;PETRESCU, STEFAN;GANGEA, MIHNEA |
发明人 |
PETRESCU, STEFAN;GANGEA, MIHNEA |
分类号 |
G06K9/00;G06T7/00;H04N5/225 |
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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