| 摘要 |
Template regions and corresponding search regions are set in two images. In each search region, a subregion in which a degree of image pattern coincidence with the corresponding template region is high, is determined. A position relationship between each template region and the corresponding subregion is calculated. Operations are iterated, in which a size of the search region and/or a search range is reduced in stages, the template region and the search region are set in accordance with the position relationship having been calculated, and a position relationship between the template region and the corresponding subregion is calculated successively, an ultimate position relationship being thereby calculated. Image position matching is performed in accordance with the ultimate corresponding position relationship.
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