Gabor filter-based hand-pose angle estimation for hand gesture recognition under varying illumination

Authors:
Deng-Yuan Huang;Wu-Chih Hu;Sung-Hsiang Chang
Affiliations:
Department of Electrical Engineering, Dayeh University, 168 University Rd., Dacun, Changhua 515, Taiwan;Department of Computer Science and Information Engineering, National Penghu University of Science and Technology, 300 Liu-Ho Rd., Makung, Penghu 880, Taiwan;Department of Electrical Engineering, Dayeh University, 168 University Rd., Dacun, Changhua 515, Taiwan
Venue:
Expert Systems with Applications: An International Journal
Year:
2011

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Abstract

In this paper, we present a novel approach for hand gesture recognition based on Gabor filters and support vector machine (SVM) classifiers for environments with varying illumination. The proposed method (1) is robust against varying illumination, which is achieved using an adaptive skin-color model switching method; (2) is insensitive to hand-pose variations, which is achieved using a Gabor filter-based gesture angle estimation and correction method; (3) allows users to wear either a long- or short-sleeve shirt, which is achieved using a method that segments the hand from the forearm. To evaluate the robustness of the proposed method, we created a database of hand gestures in realistic conditions. A recognition rate of 96.1% was achieved using the proposed method. A dynamic gesture recognition system is also presented for real-life conditions. In the proposed system, the recognition results improved from 72.8% to 93.7% when the hand-pose correction module was used, indicating that using the responses of Gabor filters to estimate the hand-pose angle is effective.