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arXiv 2201.01275cs.CVcs.MM
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局部四重模式:一种用于人脸图像识别和检索的新描述符

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

Indian Institute of Information Technology, Allahabad(印度信息技术学院阿拉哈巴德分校)

Soumendu Chakraborty, Satish Kumar Singh, Pavan Chakraborty

摘要:

提出了一种新的用于人脸图像识别和检索的手工局部四元组模式(LQPAT)。大多数现有的手工制作的描述符只编码有限数量的像素在当地的邻居。在无约束的环境下,这些描述符的性能往往急剧下降。增加局部邻域的主要问题是,它也增加了描述符的特征长度。建议的描述符试图克服这些问题,定义一个有效的编码结构与最佳的特征长度。建议的描述符编码的邻居之间的关系,在四重空间。从局部关系计算两个微模式以形成描述符。所提出的描述符的检索和识别精度进行了比较,最先进的手工制作的描述符的基准数据库,即; Caltech的脸,LFW,颜色FERET,和CASIA的脸-V5。结果分析表明,该描述子在姿态、光照、背景和表情变化不可控的情况下表现良好。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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