Local Quadruple Pattern: A Novel Descriptor for Facial Image Recognition and Retrieval

• URL: http://arxiv.org/abs/2201.01275v1
• Date: Mon, 3 Jan 2022 08:04:38 GMT
• Title: Local Quadruple Pattern: A Novel Descriptor for Facial Image Recognition and Retrieval
• Authors: Soumendu Chakraborty, Satish Kumar Singh, and Pavan Chakraborty
• Abstract summary: A novel hand crafted local quadruple pattern (LQPAT) is proposed for facial image recognition and retrieval. The proposed descriptor encodes relations amongst the neighbours in quadruple space. The retrieval and recognition accuracies of the proposed descriptor has been compared with state of the art hand crafted descriptors on bench mark databases.
• Score: 20.77994516381
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: In this paper a novel hand crafted local quadruple pattern (LQPAT) is proposed for facial image recognition and retrieval. Most of the existing hand-crafted descriptors encodes only a limited number of pixels in the local neighbourhood. Under unconstrained environment the performance of these descriptors tends to degrade drastically. The major problem in increasing the local neighbourhood is that, it also increases the feature length of the descriptor. The proposed descriptor try to overcome these problems by defining an efficient encoding structure with optimal feature length. The proposed descriptor encodes relations amongst the neighbours in quadruple space. Two micro patterns are computed from the local relationships to form the descriptor. The retrieval and recognition accuracies of the proposed descriptor has been compared with state of the art hand crafted descriptors on bench mark databases namely; Caltech-face, LFW, Colour-FERET, and CASIA-face-v5. Result analysis shows that the proposed descriptor performs well under uncontrolled variations in pose, illumination, background and expressions.

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