Patent ID: 9189684
Filing Date: 2015-11-17
Classification: G06K

Abstract:
1. A biometric authentication device comprising: a three-dimensional shape calculation unit configured to calculate a three-dimensional shape of a body from biometric information of a user detected by a biometric sensor; a storage unit configured to store a three-dimensional shape of a posture of a body of the user in advance before the biometric sensor detects the biometric information and store a difference between a three-dimensional structure that is a specific three-dimensional shape obtained from the three-dimensional shape of the posture and the three-dimensional shape of the posture in advance before the biometric sensor detects the biometric information; a posture calculation unit configured to calculate a posture of the body from the biometric information detected by the biometric sensor; a synthesis unit configured to synthesize a three-dimensional shape from the difference between the three-dimensional structure and the three-dimensional shape of the posture stored in the storage unit; and a comparison unit configured to compare the three-dimensional shape calculated by the three-dimensional shape calculation unit with the three-dimensional shape synthesized by the synthesis unit.