FEATURE QUANTITY ARITHMETIC DEVICE, FEATURE QUANTITY ARITHMETIC METHOD, AND FEATURE QUANTITY ARITHMETIC PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a feature quantity arithmetic device appropriate for computing binary feature quantities.SOLUTION: A feature quantity arithmetic device comprises: a feature-quantity binarization unit binarizing feature quantities extracted from a pyramid image constituted by an input image and a plurality of resized images obtained by scaling up or down at a plurality of magnifications; and a feature quantity arithmetic unit applying a dictionary set constituted by a plurality of dictionaries at different sizes to the binarized feature quantities and determining the association between the input image and the dictionaries, the feature quantity arithmetic unit applying the identical dictionary set or similar dictionary sets to the images in the pyramid image.