Sparse Representation of Robot Image Based on Dictionary Learning Algorithm

doi:10.16383/j.aas.2018.c170352

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	Sparse Representation of Robot Image Based on Dictionary Learning Algorithm
	Guo, Jun-Feng; Li, Yu-Liang
刊名	Zidonghua Xuebao/Acta Automatica Sinica
	2020-04-01
卷号	46 期号:4 页码:820-830
关键词	Atoms Computational efficiency Educational robots Image enhancement Iterative methods Least squares approximations Robots Compressive sensing Dictionary learning algorithms Dictionary trainings Least square methods Reconstructed image Robot images Sparse representation
ISSN号	02544156
DOI	10.16383/j.aas.2018.c170352
英文摘要	Aiming at the problem that the time of dictionary training is too long in the process of robot image compressed sensing (CS), a more efficient dictionary learning algorithm is proposed in this paper. Through the research of MOD, K-SVD, SGK and other dictionary learning algorithms, we start with the number of dictionary atoms involved in the update, and change the residuals into multiple atoms updating at the same time. Then, we can update the multiple atoms of the dictionary sequentially by using the least square method. The algorithm is to further improve the efficiency of the SGK algorithm, and to reduce the computation of single iteration. The experiment results show that the improved algorithm can effectively shorten the dictionary training time under the premise of ensuring sparsity of the dictionary and the quality of the reconstructed image. Copyright © 2020 Acta Automatica Sinica. All rights reserved.
语种	中文
出版者	Science Press
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115198]
专题	机电工程学院
作者单位	School of Mechanical and Electronic Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Guo, Jun-Feng,Li, Yu-Liang. Sparse Representation of Robot Image Based on Dictionary Learning Algorithm[J]. Zidonghua Xuebao/Acta Automatica Sinica,2020,46(4):820-830.
APA	Guo, Jun-Feng,&Li, Yu-Liang.(2020).Sparse Representation of Robot Image Based on Dictionary Learning Algorithm.Zidonghua Xuebao/Acta Automatica Sinica,46(4),820-830.
MLA	Guo, Jun-Feng,et al."Sparse Representation of Robot Image Based on Dictionary Learning Algorithm".Zidonghua Xuebao/Acta Automatica Sinica 46.4(2020):820-830.