| 摘要 |
PROBLEM TO BE SOLVED: To determine corresponding points between two images easily and automatically. SOLUTION: An object is photographed from a plurality of different positions. Three groups of initial corresponding points are manually set on a curved surface which can be approximated as a plane within an area which can be approximated by an affine camera in a first image and a second image to form triangles. On the basis of the coordinates of the initial corresponding points, an affine conversion matrix between the triangles of the both images is determined. A corresponding point candidate on the second image is determined as a point corresponding to the center of gravity (a specific point) of the triangle on the first image. A pixel group in the vicinity of the specific point is subjected to affine conversion to form a template. The template and a pixel group on the second image are compared in the vicinity of the corresponding point candidate on the second image. A point with the best comparison result is determined to be the corresponding point of the specific point. COPYRIGHT: (C)2006,JPO&NCIPI
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