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计算机系统应用英文版:2016,25(4):272-277

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利用信息熵的岩心图像自适应压缩感知重构

唐国维, 刘彦彤, 张岩

(东北石油大学计算机与信息技术学院, 大庆 163318)

Adaptive Compressed Sensing Reconstruction of Core Images Using Information Entropy

TANG Guo-Wei, LIU Yan-Tong, ZHANG Yan

(School of Computer and Information Technology, Northeast Petroleum University, Daqing 163318, China)

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Received:September 24, 2015 Revised:November 11, 2015

中文摘要: 针对BCS-SPL算法对岩心图像进行压缩感知重构的细节模糊的问题,提出一种利用信息熵的岩心图像BCS-SPL压缩感知重构算法.采用小波变换对岩心图像进行稀疏表示,对各子带进行多尺度分块,依据信息熵的大小自适应分配采样率并确定观测矩阵,通过维纳滤波结合Landweber迭代操作实现重构.实验结果表明,在相同采样率下,与原始的BCS-SPL算法相比,该算法的重构质量提高了2-4 dB.

中文关键词: 岩心图像压缩感知重构自适应信息熵

Abstract:Aimed at the details vague problem of Block Compressed Sensing-Smooth Projected Landweber compressed sensing reconstruction of core images, a Block Compressed Sensing-Smooth Projected Landweber compressed sensing reconstruction of core images using information entropy is proposed. The method introduces discrete wavelet transform into the sparse representation and conducts multiscale block for each subband, and then adaptively allocates the sampling rates and determines the measurement matrix. The reconstruction can be achieved by Wiener filter combined with Landweber iterative. The experimental results show that the reconstruction quality is improved by 2-4dB compared with that of Block Compressed Sensing-Smooth Projected Landweber under the same sampling rates.

keywords: core images compressed sensing reconstruction adaptive information entropy

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基金项目:东北石油大学研究生创新科研项目(YJSCX2015-034NEPU);黑龙江省教育厅科学技术研究项目(12521050)

Author Name	Affiliation
TANG Guo-Wei	School of Computer and Information Technology, Northeast Petroleum University, Daqing 163318, China
LIU Yan-Tong	School of Computer and Information Technology, Northeast Petroleum University, Daqing 163318, China
ZHANG Yan	School of Computer and Information Technology, Northeast Petroleum University, Daqing 163318, China

Author Name	Affiliation
TANG Guo-Wei	School of Computer and Information Technology, Northeast Petroleum University, Daqing 163318, China
LIU Yan-Tong	School of Computer and Information Technology, Northeast Petroleum University, Daqing 163318, China
ZHANG Yan	School of Computer and Information Technology, Northeast Petroleum University, Daqing 163318, China

引用文本：
唐国维,刘彦彤,张岩.利用信息熵的岩心图像自适应压缩感知重构.计算机系统应用,2016,25(4):272-277
TANG Guo-Wei,LIU Yan-Tong,ZHANG Yan.Adaptive Compressed Sensing Reconstruction of Core Images Using Information Entropy.COMPUTER SYSTEMS APPLICATIONS,2016,25(4):272-277