CHANGE DETECTION ASSISTANCE DEVICE, CHANGE DETECTION ASSISTANCE METHOD, AND COMPUTER-READABLE RECORDING MEDIUM

摘要

A change detection assistance device (100) is provided with: an image division unit (30) that, on the basis of color information and texture information for images of the same object captured at different dates and times, divides the images into a plurality of regions; a change feature calculation unit (60) that extracts a feature vector for each region obtained by the division and calculates a change feature vector that represents the difference in feature vectors between mutually corresponding regions; a clustering unit (70) that performs clustering on all the change feature vectors to generate a cluster; and a determination unit (80) that determines, for each region, the probability that a change has occurred between the old capture date and time and the new capture date and time, on the basis of the generated clusters.