Hard negative generation for identity-disentangled facial expression recognition

doi:10.1016/j.patcog.2018.11.001

CIOMP OpenIR

	Hard negative generation for identity-disentangled facial expression recognition
	X.F.Liu; B.Kumar; P.Jia; J.You
	2019
发表期刊	Pattern Recognition
ISSN	0031-3203
卷号	88 页码:1-12
摘要	Various factors such as identity-specific attributes, pose, illumination and expression affect the appearance of face images. Disentangling the identity-specific factors is potentially beneficial for facial expression recognition (FER). Existing image-based FER systems either use hand-crafted or learned features to represent a single face image. In this paper, we propose a novel FER framework, named identity disentangled facial expression recognition machine (IDFERM), in which we untangle the identity from a query sample by exploiting its difference from its references (e.g., its mined or generated frontal and neutral normalized faces). We demonstrate a possible 'recognition via generation' scheme which consists of a novel hard negative generation (HNG) network and a generalized radial metric learning (RML) network. For FER, generated normalized faces are used as hard negative samples for metric learning. The difficulty of threshold validation and anchor selection are alleviated in RML and its distance comparisons are fewer than those of traditional deep metric learning methods. The expression representations of RML achieve superior performance on the CK +, MMI and Oulu-CASIA datasets, given a single query image for testing. (C) 2018 Elsevier Ltd. All rights reserved.
关键词	Hard negative generation,Adaptive metric learning,Face normalization,Facial expression recognition,Computer Science,Engineering
DOI	10.1016/j.patcog.2018.11.001
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63181
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	X.F.Liu,B.Kumar,P.Jia,et al. Hard negative generation for identity-disentangled facial expression recognition[J]. Pattern Recognition,2019,88:1-12.
APA	X.F.Liu,B.Kumar,P.Jia,&J.You.(2019).Hard negative generation for identity-disentangled facial expression recognition.Pattern Recognition,88,1-12.
MLA	X.F.Liu,et al."Hard negative generation for identity-disentangled facial expression recognition".Pattern Recognition 88(2019):1-12.

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