Parallel approach to face recognition using IR images

Arnold N. Pears; Kursten G. Leins

doi:10.1117/12.312602

2 July 1998 Parallel approach to face recognition using IR images

Arnold N. Pears, Kursten G. Leins

Proceedings Volume 3372, Algorithms for Multispectral and Hyperspectral Imagery IV; (1998) https://doi.org/10.1117/12.312602
Event: Aerospace/Defense Sensing and Controls, 1998, Orlando, FL, United States

Abstract

Face recognition has potential applications in surveillance and security systems. Most algorithms proceed by constructing a feature vector, which represents those aspects of the face which vary most between individuals. In general these algorithms locate critical features such as the eyes, nose and mouth, and use a mixture of direct comparison, and spatial distribution of features to identify those candidate images in a large database which match the image currently under analysis. Since pixel intensity comparisons for regions around the eyes are often used to compute a measure of similarity between two images lighting can play a major part in the success of recognition techniques. By using a combination of infrared and white light image information we hope to normalize pixel intensities, reducing the error margin due to variations in lighting conditions. However, the most significant problem with recognition systems is the processing delay required to find a match. Since a high degree of certainty is required in security applications, this increases the level of processing required leading to even greater delays. This paper proposes and evaluates a parallel algorithm for face recognition. The general performance characteristics of the algorithm are analyzed using formal methods to obtain the expected temporal and spatial complexities of the algorithm, and to estimate the speedup that can be achieved. Confirmation of these predictions is provided by implementing the parallel algorithm on an eight processor Sequent Balance shared memory multiprocessor and PRISM/DiST, a multiprocessor simulator.

Citation Download Citation

Arnold N. Pears and Kursten G. Leins "Parallel approach to face recognition using IR images", Proc. SPIE 3372, Algorithms for Multispectral and Hyperspectral Imagery IV, (2 July 1998); https://doi.org/10.1117/12.312602

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KEYWORDS

Image processing

Databases

Facial recognition systems

Detection and tracking algorithms

Head

Infrared imaging

Light sources and illumination

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