Ubiquitous Computing and Communication Journal
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Abstract
Title: Face recognition under pose and expresivity variation using thermal and visible images
Authors: Mr. Florin Marius Pop, Dr. Mihaela Gordan, Dr. Camelia Florea, Dr. Aurel Vlaicu
Abstract:
Many existing works in face recognition are based solely on visible images. The use of bimodal systems based on visible and thermal images is seldom reported in face recognition, despite its advantage of combining the discriminative power of both modalities, under expressions or pose variations. In this paper, we investigate the combined advantages of thermal and visible face recognition on a Principal Component Analysis (PCA) induced feature space, with PCA applied on each spectrum, on a relatively new thermal/visible face database – OTCBVS, for large pose and expression variations. The recognition is done through two fusion schemes based on k-Nearest Neighbors classification and on Support Vector Machines. Our findings confirm that the recognition results are improved by the aid of thermal images over the classical approaches on visible images alone, when a suitably chosen classifier fusion is employed.