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arXiv 1702.02537cs.CV
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软生物特征:使用局部特征描述符从无约束人脸图像中进行性别识别

Soft Biometrics: Gender Recognition from Unconstrained Face Images using Local Feature Descriptor

Universiti Putra Malaysia(马来西亚博特拉大学)

Olasimbo Ayodeji Arigbabu, Sharifah Mumtazah Syed Ahmad, Wan Azizun Wan Adnan, Salman Yussof, Saif Mahmood

AI总结:

针对无约束人脸图像性别识别中对齐复杂、多样本及先验分布不现实的问题,提出利用局部特征描述符对光度变化的鲁棒性,从单人单张图像提取二维人脸形状描述,并在 LFW 上验证有效性。

摘要:

由于存在严重的未对齐以及姿态、表情和光照变化,从无约束人脸图像中识别性别是一项具有挑战性的任务。在以往的研究中,从无约束人脸图像中识别性别通常通过利用图像对齐、利用每个人的多个样本来提高分类器的学习能力,或基于有关数据集姿态和人口统计分布的先验知识来学习性别。然而,图像对齐增加了计算的复杂性和时间,而在实际应用中,使用多个样本或掌握有关数据分布的先验知识是不现实的。本文提出了一种从无约束人脸图像中识别性别 的方法。我们的技术利用局部特征描述符对光度变化的鲁棒性,使用每个人的单一样本图像来提取二维人脸图像的形状描述。在 Labeled Faces in the Wild(LFW)数据集上的实验结果证明了所提方法的有效性。本研究的实质是调查从无约束人脸图像中识别性别最合适的函数和参数设置。

英文摘要:

Gender recognition from unconstrained face images is a challenging task due to the high degree of misalignment, pose, expression, and illumination variation. In previous works, the recognition of gender from unconstrained face images is approached by utilizing image alignment, exploiting multiple samples per individual to improve the learning ability of the classifier, or learning gender based on prior knowledge about pose and demographic distributions of the dataset. However, image alignment increases the complexity and time of computation, while the use of multiple samples or having prior knowledge about data distribution is unrealistic in practical applications. This paper presents an approach for gender recognition from unconstrained face images. Our technique exploits the robustness of local feature descriptor to photometric variations to extract the shape description of the 2D face image using a single sample image per individual. The results obtained from experiments on Labeled Faces in the Wild (LFW) dataset describe the effectiveness of the proposed method. The essence of this study is to investigate the most suitable functions and parameter settings for recognizing gender from unconstrained face images.

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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