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The easy block Hadamard transform: A new adaptive directional Hadamard transform for sparse image representation
Sun, Jian; Ren, Guo-Qiang; Wu, Qin-Zhang
Source PublicationOPTIK
Volume125Issue:10Pages:2356-2360
2014
Language英语
Indexed BySCI
WOS IDWOS:000335621900028
SubtypeArticle
AbstractIn order to get an efficient image representation, we introduce a new locally adaptive Hadamard transform, called Easy Block Hadamard Transform (EBHT). EBHT is a type of directional Hadamard transform, which can be adapted to the image geometry in each block. Firstly, the image is divided into eight equalsized squares and the adaptive directional Hadamard filter is employed to get the low-pass data and high-pass data. In the further level of the filter bank algorithm, we just divide the low-pass image into four equal-sized squares. EBHT is very simple, but effective. Numerical results show the excellent efficiency of the EBHT for sparse image representation. (C) 2013 Elsevier GmbH. All rights reserved.
KeywordSparse Representation Wavelet Transform Adaptive Directional Filter Image Approximation
WOS KeywordPATH WAVELET TRANSFORM ; APPROXIMATION ; COMPRESSION
WOS Research AreaOptics
WOS SubjectOptics
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/2495
Collection光电技术研究所被WoS收录文章
AffiliationUniv Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Sichuan, Peoples R China
Recommended Citation
GB/T 7714
Sun, Jian,Ren, Guo-Qiang,Wu, Qin-Zhang. The easy block Hadamard transform: A new adaptive directional Hadamard transform for sparse image representation[J]. OPTIK,2014,125(10):2356-2360.
APA Sun, Jian,Ren, Guo-Qiang,&Wu, Qin-Zhang.(2014).The easy block Hadamard transform: A new adaptive directional Hadamard transform for sparse image representation.OPTIK,125(10),2356-2360.
MLA Sun, Jian,et al."The easy block Hadamard transform: A new adaptive directional Hadamard transform for sparse image representation".OPTIK 125.10(2014):2356-2360.
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