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题名:
The easy block Hadamard transform: A new adaptive directional Hadamard transform for sparse image representation
作者: Sun, Jian; Ren, Guo-Qiang; Wu, Qin-Zhang
刊名: OPTIK
出版日期: 2014
卷号: 125, 期号:10, 页码:2356-2360
关键词: Sparse representation ; Wavelet transform ; Adaptive directional filter ; Image approximation
文章类型: Article
英文摘要: In 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.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
关键词[WOS]: PATH WAVELET TRANSFORM ; APPROXIMATION ; COMPRESSION
收录类别: SCI
语种: 英语
WOS记录号: WOS:000335621900028
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/2495
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: Univ Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Sichuan, Peoples R China

Recommended Citation:
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.
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