8 November 2013 Relative gradient local binary patterns method for face recognition under varying illuminations
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J. of Electronic Imaging, 22(4), 043013 (2013). doi:10.1117/1.JEI.22.4.043013
Local binary patterns (LBPs) are effective facial texture feature descriptors in face recognition. However, the performance of original LBP-based face recognition methods rapidly deteriorates in the condition of nonmonotonic illumination variations. In order to overcome this drawback, we propose a LBP-based face recognition approach, namely relative gradient LBPs (RGLBPs), in which the relative gradient is first applied to the original face images to extract illumination invariant features. Then, an LBP describes textural and structural features for face recognition. Finally, the chi-square dissimilarity measure and the nearest neighbor classifier are used for classification. The experimental results validate that the proposed approach is efficient for the illumination problem in face recognition and also robust to expression and age variations.
© 2013 SPIE and IS&T
HuoRong Ren, XinXin Yan, Yan Zhou, Rui Cui, Jianwei Sun, Yang Liu, "Relative gradient local binary patterns method for face recognition under varying illuminations," Journal of Electronic Imaging 22(4), 043013 (8 November 2013). http://dx.doi.org/10.1117/1.JEI.22.4.043013

Facial recognition systems

Binary data

Light sources and illumination



Image processing

Feature extraction

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