FEATURE POINT MATCHING DEVICE, FEATURE POINT MATCHING METHOD, AND NON-TEMPORARY COMPUTER-READABLE MEDIUM HAVING FEATURE POINT MATCHING PROGRAM STORED THEREON

摘要

A purpose of the present invention is to match feature points with high accuracy even when geometric transformation such as two-dimensional affine transformation, projective transformation and the like is applied to images. A feature point matching device 5 according to the present invention includes position feature generation means 51 for generating a position feature quantity for a feature point based on a position of the feature point included in an image, pixel value feature generation means 52 for generating a pixel value feature quantity for the feature point based on a pixel value of the feature point included in the image, and feature matching means 53 for matching a first feature point and a second feature point based on a degree of matching between a first position feature quantity generated by the position feature generation means 51 from a first image and a second position feature quantity generated by the position feature generation means 51 from a second image and a degree of matching between a first pixel value feature quantity generated by the pixel value feature generation means 52 from the first image and a second pixel value feature quantity generated by the pixel value feature generation means 52 from the second image.