Sparse Coding from a Bayesian Perspective

CORC > 西安光学精密机械研究所 > 中国科学院西安光学精密机械研究所 > 光学影像学习与分析中心

	Sparse Coding from a Bayesian Perspective
	Lu, Xiaoqiang1 ; Wang, Yulong 1,2; Yuan, Yuan1
刊名	ieee transactions on neural networks and learning systems
	2013-06-01
卷号	24 期号:6 页码:929-939
关键词	Bayesian compressive sensing (CS) computer vision maximum a posteriori (MAP) sparse coding
英文摘要	sparse coding is a promising theme in computer vision. most of the existing sparse coding methods are based on either l(0) or l(1) penalty, which often leads to unstable solution or biased estimation. this is because of the nonconvexity and discontinuity of the l(0) penalty and the over-penalization on the true large coefficients of the l(1) penalty. in this paper, sparse coding is interpreted from a novel bayesian perspective, which results in a new objective function through maximum a posteriori estimation. the obtained solution of the objective function can generate more stable results than the l(0) penalty and smaller reconstruction errors than the l(1) penalty. in addition, the convergence property of the proposed algorithm for sparse coding is also established. the experiments on applications in single image super-resolution and visual tracking demonstrate that the proposed method is more effective than other state-of-the-art methods.
WOS标题词	science & technology ; technology
类目[WOS]	computer science, artificial intelligence ; computer science, hardware & architecture ; computer science, theory & methods ; engineering, electrical & electronic
研究领域[WOS]	computer science ; engineering
关键词[WOS]	variable selection ; representation ; regression ; lasso ; dictionaries ; recognition ; tracking ; model
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000317786000007
公开日期	2015-06-30
内容类型	期刊论文
源URL	[http://ir.opt.ac.cn/handle/181661/23436]
专题	西安光学精密机械研究所_光学影像学习与分析中心
作者单位	1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Ctr Opt Imagery Anal & Learning OPTIMAL, Xian 710119, Peoples R China 2.Hubei Univ, Fac Math & Comp Sci, Wuhan 430062, Peoples R China
推荐引用方式 GB/T 7714	Lu, Xiaoqiang,Wang, Yulong,Yuan, Yuan. Sparse Coding from a Bayesian Perspective[J]. ieee transactions on neural networks and learning systems,2013,24(6):929-939.
APA	Lu, Xiaoqiang,Wang, Yulong,&Yuan, Yuan.(2013).Sparse Coding from a Bayesian Perspective.ieee transactions on neural networks and learning systems,24(6),929-939.
MLA	Lu, Xiaoqiang,et al."Sparse Coding from a Bayesian Perspective".ieee transactions on neural networks and learning systems 24.6(2013):929-939.