Patent Document ID: 8520981
Application ID: 12734559
Patent Status: 1

Claim One:
1. A feature point arrangement checking device, which computes arrangements of a plurality of feature points based on feature points acquired from one of a plurality of checking target images and another checking target image of the plurality of checking target images, generates a feature amount having invariants as elements regarding a geometrical transformation for each of the checking target images based on a computed result thereof, and checks whether or not the feature point arrangements of the checking target images are the same feature point arrangements by using the feature point amounts of the checking target images, the feature point arrangement checking device comprising: a parameter estimating module which computes a geometrical transformation parameter based on the respective feature point arrangements that are bases for generating the respective feature amounts of each of the checking target images for a local feature point arrangement pair; and a parameter checking module which checks whether or not each of the feature point arrangements acquired from said one of the checking target images is the same as a corresponding one of the feature point arrangements acquired from said another checking target image by comparing the parameter computed from said each feature point arrangement and said corresponding feature point arrangement with a range that is set in advance.