Feature point matching device, feature point matching method, and feature point matching program

摘要

It is an object to collate feature points with high accuracy even when geometric transformation such as two-dimensional affine transformation or projective transformation is performed on an image. The feature point matching device 5 according to the present invention is based on a position feature generating unit 51 that generates a position feature amount related to a feature point based on the position of the feature point included in the image, and a pixel value of the feature point included in the image. The pixel value feature generating unit 52 that generates a pixel value feature amount related to the feature point, the first position feature amount generated from the first image by the position feature generating unit 51, and the second by the position feature generating unit 51 The degree of coincidence with the second position feature amount generated from the image of the first pixel value, the first pixel value feature amount generated from the first image by the pixel value feature generation unit 52, and the pixel value feature generation unit 52 A feature matching unit 53 is provided for matching the first feature point and the second feature point based on the degree of coincidence with the second pixel value feature amount generated from the second image.