Sparse Coding from a Bayesian Perspective
文献类型：期刊论文
| 作者 | Lu, Xiaoqiang1 ; Wang, Yulong1,2; Yuan, Yuan1
|
| 刊名 | ieee transactions on neural networks and learning systems
 |
| 出版日期 | 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 |
| 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. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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