发明名称 |
Device and method for detecting object and device and method for group learning |
摘要 |
<p>An object detecting device 1 comprises a scaling section 3 for generating scaled images by scaling down a gradation image input from an image output section 2, a scanning section 4 for sequentially manipulating the scaled images and cutting out window images from them and a discriminator 5 for judging if each window image is an object or not. The discriminator 5 includes a plurality of weak discriminators that are learnt in a group by boosting and an adder for making a weighted majority decision from the outputs of the weak discriminators. Each of the weak discriminators outputs an estimate telling the likelihood of a window image to be an object or not by using the difference of the luminance values of two pixels. The discriminator 5 suspends the operation of computing estimates for a window image that is judged to be a non-object, using a threshold value that is learnt in advance. <IMAGE></p> |
申请公布号 |
EP1536369(B1) |
申请公布日期 |
2007.01.03 |
申请号 |
EP20040257229 |
申请日期 |
2004.11.22 |
申请人 |
SONY CORPORATION |
发明人 |
HIDAI, KENICHI;SABE, KOHTARO;KAWAMOTO, KENTA |
分类号 |
G06K9/62;G06T1/00;G06K9/00;G06K9/68;G06N3/08;G06T7/00 |
主分类号 |
G06K9/62 |
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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