Patent ID: 8135181
Filing Date: 2012-03-13
Classification: G06K

Abstract:
1. A method of multi-modal biometric recognition, comprising the steps of: capturing a hand image of a user by using a digital camera; transforming the captured hand image into a digitized image by the digital camera; binarizing said digitized image; obtaining an orientational angle θ and location information of said binarized image; vertically aligning said binarized image, based on the orientational angle θ and the location information from binarized shape moments, using a rotation matrix; establishing a geometrical center of a palmprint image of said vertically aligned image based on selected pixel(s) with highest magnitude of distance transform; segmenting said palmprint image; extracting palmprint feature vectors of said palmprint image using discrete cosine transform; obtaining a hand shape image from said vertically aligned image, and extracting hand shape feature vectors from localized information of the hand shape image; selecting a subset of the hand shape feature vectors and a subset of the palmprint feature vectors; fusing the subset of said hand shape feature vectors and the subset of said palmprint feature vectors to form a fused feature vector; and classifying said fused feature vector.