发明名称 |
Device and method for detecting object and device and method for group learning |
摘要 |
An object detecting device for detecting an object in a given gradation image. A scaling section generates scaled images by scaling down a gradation image input from an image output section. A scanning section sequentially manipulates the scaled images and cutting out window images from them and a discriminator judges if each window image is an object or not. The discriminator includes a plurality of weak discriminators that are learned 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 of the likelihood of a window image to be an object or not by using the difference of the luminance values between two pixels. The discriminator suspends the operation of computing estimates for a window image that is judged to be a non-object, using a threshold value that is learned in advance.
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申请公布号 |
US7574037(B2) |
申请公布日期 |
2009.08.11 |
申请号 |
US20040994942 |
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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