发明名称 |
Device, method and record medium for image comparison |
摘要 |
An image comparison device for comparing a target object (an object to be recognized or identified) with registered objects (objects which are preliminarily registered to be compared with the target object) includes a registration section and a comparison section. The registration section measures the 3-D shape and surface reflectance of each registered object and registers and stores them as registered data. In the comparison section, a photographing section photographs a target object and thereby obtains an input image. A position/pose estimation section estimates the position/pose of the target object in the input image and thereby obtains position/pose parameters. An illumination correction section generates a reference image of each registered object (a 2-D image of the registered object in the same position/pose as the target object in the input image and under the same illumination condition as in the input image) by use of the position/pose parameters obtained by the position/pose estimation section and the registered data. An image comparison section calculates an evaluation value concerning the similarity between the reference image and the input image. A judgment section judges whether or not each of the registered objects is the same as or similar to the target object based on the evaluation value.
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申请公布号 |
US2001033685(A1) |
申请公布日期 |
2001.10.25 |
申请号 |
US20010823763 |
申请日期 |
2001.04.03 |
申请人 |
ISHIYAMA RUI |
发明人 |
ISHIYAMA RUI |
分类号 |
G06F17/30;G06K9/00;G06K9/46;G06K9/64;G06T7/00;(IPC1-7):G06K9/00;G06K9/40 |
主分类号 |
G06F17/30 |
代理机构 |
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代理人 |
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主权项 |
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