Image matching device, image matching method and image matching program

摘要

Image matching device 300 of the invention includes feature image extracting sections 303, 304 extracting one or more partial object images containing a local structural feature from an object image and extracting one or more partial reference images containing the local structural feature from each reference image, first image detecting section 306 setting each of the partial object images as an image of interest and detecting a first partial image most similar to the image of interest from a set of partial reference images, second image detecting section 307 detecting a second partial image most similar to the first partial image from a set of partial object images, and determination processing section 305 determining whether or not the image of interest matches the second partial image and outputting the result of the determination.

主权项

1. An image matching device which matches an object image against one or more reference images, comprising:
a feature image extracting section configured to extract a plurality of partial object images containing a local structural feature from the object image and to extract a plurality of partial reference images containing a local structural feature from each of the reference images; a first image detecting section configured to set each of the plurality of partial object images as an image of interest and to detect a first partial image most similar to the image of interest from a set including the plurality of partial reference images; a second image detecting section configured to detect a second partial image most similar to the first partial image from a set including the plurality of partial object images; a determination processing section configured to determine whether or not each image of interest in a plurality of images of interest matches the second partial image which corresponds to the image of interest and to output the result of the determination; and an image matching section configured to calculate a degree of matching between the object image and each of the reference images on the basis of the results of determination provided from the determination processing section for all of the plurality of partial object images.