Image analysis – Applications – Target tracking or detecting
Reexamination Certificate
2007-06-05
2007-06-05
Wu, Jingge (Department: 2624)
Image analysis
Applications
Target tracking or detecting
C382S154000, C382S209000
Reexamination Certificate
active
09823763
ABSTRACT:
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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Lu Tom Y.
NEC Corporation
Wu Jingge
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