Authors: Asish Bera; Debotosh Bhattacharjee; Mita Nasipuri
Addresses: Department of Computer Science and Engineering, Haldia Institute of Technology, Haldia-72165, India ' Department of Computer Science and Engineering, Jadavpur University, Kolkata-700032, India ' Department of Computer Science and Engineering, Jadavpur University, Kolkata-700032, India
Abstract: In this paper, a new approach for user recognition is presented, which is based on the geometric features from either left or right hand images. The hand images are collected at unconstrained pose environment. Image normalisation is applied at the preprocessing stage. Features are extracted from the normalised images, which are mainly comprised of lengths and widths at different positions of the fingers. A simple classification algorithm has been implemented that is primarily dependent on the ratio of modified minimum distance and number of features, which are matched within a distance threshold. Experimental results of identification and verification are quite acceptable, producing 98.8% identification and 99.6% verification (at 0.55% FAR) of 253 standard subjects which are a blend of both left and right hand images.
Keywords: biometrics; hand geometry; human identification; verification; user recognition; geometric features; left hand images; right hand images; image normalisation; normalised images; finger positions; classification; feature extraction.
International Journal of Biometrics, 2014 Vol.6 No.3, pp.231 - 247
Received: 14 Aug 2013
Accepted: 21 Apr 2014
Published online: 20 Aug 2014 *