Low-Resolution Face Recognition via Coupled Locality Preserving Mappings

doi:10.1109/LSP.2009.2031705

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	Low-Resolution Face Recognition via Coupled Locality Preserving Mappings
	Li, Bo 2; Chang, Hong 1,3; Shan, Shiguang 1,3; Chen, Xilin 1,3
刊名	IEEE SIGNAL PROCESSING LETTERS
	2010
卷号	17 期号:1 页码:20-23
关键词	Coupled locality preserving mappings face recognition low-resolution
ISSN号	1070-9908
DOI	10.1109/LSP.2009.2031705
英文摘要	Practical face recognition systems are sometimes confronted with low-resolution face images. Traditional two-step methods solve this problem through employing super-resolution (SR). However, these methods usually have limited performance because the target of SR is not absolutely consistent with that of face recognition. Moreover, time-consuming sophisticated SR algorithms are not suitable for real-time applications. To avoid these limitations, we propose a novel approach for LR face recognition without any SR preprocessing. Our method based on coupled mappings (CMs), projects the face images with different resolutions into a unified feature space which favors the task of classification. These CMs are learned through optimizing the objective function to minimize the difference between the correspondences (i.e., low-resolution image and its high-resolution counterpart). Inspired by locality preserving methods for dimensionality reduction, we introduce a penalty weighting matrix into our objective function. Our method significantly improves the recognition performance. Finally, we conduct experiments on publicly available databases to verify the efficacy of our algorithm.
资助项目	Natural Science Foundation of China[60803084] ; Natural Science Foundation of China[60872124] ; Natural Science Foundation of China[U0835005] ; National Basic Research Program of China (973 Program)[2009CB320902]
WOS研究方向	Engineering
语种	英语
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
WOS记录号	WOS:000290089100003
内容类型	期刊论文
源URL	[http://119.78.100.204/handle/2XEOYT63/12429]
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Li, Bo
作者单位	1.Chinese Acad Sci, Key Lab Intelligent Informat Proc, Beijing 100190, Peoples R China 2.Harbin Inst Technol, Sch Comp Sci & Technol, Harbin 150006, Peoples R China 3.Chinese Acad Sci, Inst Comp Technol, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Li, Bo,Chang, Hong,Shan, Shiguang,et al. Low-Resolution Face Recognition via Coupled Locality Preserving Mappings[J]. IEEE SIGNAL PROCESSING LETTERS,2010,17(1):20-23.
APA	Li, Bo,Chang, Hong,Shan, Shiguang,&Chen, Xilin.(2010).Low-Resolution Face Recognition via Coupled Locality Preserving Mappings.IEEE SIGNAL PROCESSING LETTERS,17(1),20-23.
MLA	Li, Bo,et al."Low-Resolution Face Recognition via Coupled Locality Preserving Mappings".IEEE SIGNAL PROCESSING LETTERS 17.1(2010):20-23.