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arXiv 1902.08802cs.CV
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基于梯度变换融合热图像和视觉图像的光照不变人脸识别

Illumination-invariant Face recognition by fusing thermal and visual images via gradient transfer

Indian Institute of Technology, Kharagpur(印度理工学院卡拉格普尔分校)

Sumit Agarwal, Harshit S. Sikchi, Suparna Rooj, Shubhobrata Bhattacharya, Aurobinda Routray

摘要:

在低照度等现实生活环境中的人脸识别仍然是生物识别安全领域的一个公开挑战。公认的是,面部识别中的最先进的方法在照明不良的情况下提供低准确度。在这项工作中,我们提出了一个更强大的光照不变的人脸识别算法,使用多模式的方法。我们提出了一个新的数据集,包括对齐的面孔的热和视觉图像的100个主题。然后,我们将人脸检测应用于热图像,使用最大的斑点提取方法,并将其应用于融合图像的不同形式的人脸识别的目的。提出了一种热图像与可见光图像融合的算法。我们解释为什么只依赖一种模态会得到错误的结果。我们使用一个更轻,更快的CNN模型,称为MobileNet,用于人脸识别和更快的推理,并能够在实时的生物识别系统中使用它。我们在自己创建的数据集上测试了我们提出的方法,结果表明,融合图像上的实时人脸识别比单独使用视觉或热图像的效果要好得多。

英文摘要:

Face recognition in real life situations like low illumination condition is still an open challenge in biometric security. It is well established that the state-of-the-art methods in face recognition provide low accuracy in the case of poor illumination. In this work, we propose an algorithm for a more robust illumination invariant face recognition using a multi-modal approach. We propose a new dataset consisting of aligned faces of thermal and visual images of a hundred subjects. We then apply face detection on thermal images using the biggest blob extraction method and apply them for fusing images of different modalities for the purpose of face recognition. An algorithm is proposed to implement fusion of thermal and visual images. We reason for why relying on only one modality can give erroneous results. We use a lighter and faster CNN model called MobileNet for the purpose of face recognition with faster inferencing and to be able to be use it in real time biometric systems. We test our proposed method on our own created dataset to show that real-time face recognition on fused images shows far better results than using visual or thermal images separately.

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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