Patent Document ID: 10019619
Application ID: 15261137
Patent Status: 1

Claim One:
1. A biometrics authentication device comprising: a filter that extracts from an input image directional features that respectively correspond to directions different from each other; an perpendicular filter that, from among the directional features extracted from the filter, decreases a luminance value of the entirety of a directional feature that corresponds to a prescribed direction, increases a luminance value of the entirety of a directional feature that corresponds to a direction perpendicular to the directional feature that corresponds to the prescribed direction, and outputs other directional features with no change; a non-directional feature generation processing unit that generates a non-directional feature on the basis of the directional features output from the perpendicular filter; a matching processing unit that obtains a similarity between the non-directional feature and a registered non-directional feature stored in a storing unit; and a determining unit that determines identity by using the similarity, wherein the non-directional feature generation processing unit, the matching processing unit and the determining unit are performed by a computer.