Technology of Graphic & Image
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App. Res. of Comp. Printed Article
Vol. 37, 2020 No. 10
3169-3174

Research on deep face recognition based on adaptive angle loss function

Ji Dongfei
Ding Xueming
School of Optical Electrical & Computer Engineering, University of Shanghai for Science & Technology, Shanghai 200093, China
DOI: 10.19734/j.issn.1001-3695.2019.06.0250

Abstract

Angle space loss function is often unstable because of it needs to manually adjust the hyperparameters. The number of category labels lead to poor portability of the algorithm. To solve these problems, this paper proposed an adaptive angle space loss function with lower bound judgment and applied it to face recognition. Based on the hypothesis that the facial expression features were distributed in hypersphere space, it made the second derivative of the prediction probability formula zero by analyzing the influence of different hyperparameters on the training results. Then, it calculated the tailed median angle of the current mini-batch. In order to improve the portability of the algorithm, it inferred the lower bound of adaptive hyperparameter by the minimum expected posterior probability of the class center. By evaluating the algorithm on LFW and MegaFace datasets, the proposed method can effectively improve the accuracy of face recognition and the convergence rate of the model. Experiments on Asian-Celeb dataset show that the proposed method has better portability.

Foundation Support

国家自然科学基金资助项目(61673277)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2019.06.0250
Publish at: Application Research of Computers Printed Article, Vol. 37, 2020 No. 10
Section: Technology of Graphic & Image
Pages: 3169-3174
Serial Number: 1001-3695(2020)10-059-3169-06

Publish History

[2020-10-05] Printed Article

Cite This Article

姬东飞, 丁学明. 基于自适应角度损失函数的深度人脸识别算法研究 [J]. 计算机应用研究, 2020, 37 (10): 3169-3174. (Ji Dongfei, Ding Xueming. Research on deep face recognition based on adaptive angle loss function [J]. Application Research of Computers, 2020, 37 (10): 3169-3174. )

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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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