Local Binary Patterns as an Image Preprocessing for Face Authentication

One of the major problem in face authentication systems is to deal with variations in illumination. In a \mbox{realistic} scenario, it is very likely that the lighting conditions of the probe image does not correspond to those of the gallery image, hence there is a need to handle such variations. In this work, we present a new preprocessing algorithm based on Local Binary Patterns (LBP): a texture representation is derived from the input face image before being forwarded to the classifier. The efficiency of the proposed approach is empirically demonstrated using both an appearance-based (LDA) and a feature-based (HMM) face authentication systems on two databases: BANCA and XM2VTS (with its darkened set). Conducted experiments show a significant improvement in terms of verification error rates and compare to results obtained with state-of-the-art preprocessing techniques.

Published in:
IEEE Int. Conf. on Automatic Face and Gesture Recognition (AFGR)
Presented at:
IEEE Int. Conf. on Automatic Face and Gesture Recognition (AFGR)
IDIAP-RR 05-76

 Record created 2006-03-10, last modified 2018-03-17

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