Patent ID: 9183433
Filing Date: 2015-11-10
Classification: G06K

Abstract:
1. A biometric authentication system, comprising: an image sensor acquiring an image of a living body; a first light source that irradiates a first light to the living body; a second light source that irradiates a second light to the living body; an authentication information storage unit storing a first distance and a second distance; a feature extraction unit extracting a biological information from the image of the living body, and a determination unit configured to determine the go/no-go of biometric authentication according to a result of a comparison between the extracted biological information and stored template data, wherein the biometric authentication system is configured to improve the biological information by performing a deconvolution process, wherein the deconvolution process uses a point spread function which is a circular symmetric function of distance from a z axis on the living body and is derived from the following equation: