基于压缩感知的图像压缩抗干扰重构算法
文献类型：期刊论文
| 作者 | 杜梅; 赵怀慈 ; 赵春阳
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| 刊名 | 光电子.激光
 |
| 出版日期 | 2014 |
| 卷号 | 25期号:5页码:1003-1009 |
| 关键词 | 抗干扰 压缩感知(CS) 图像重构 高斯随机干扰 |
| ISSN号 | 1005-0086 |
| 其他题名 | An anti-interference reconstruction algorithm of image compression based on compressed sensing |
| 产权排序 | 1 |
| 中文摘要 | 针对传统图像变换压缩方法压缩的图像经无线信道传输时受高斯随机干扰导致重要变换系数失真出现重构图像局部内容缺失的现象,本文根据压缩感知(CS)信号分量具有同等重要性的特性,理论分析了去除失真CS信号分量以抵御干扰的可行性,提出一种基于CS的图像压缩抗干扰重构算法。算法首先假定已知受高斯随机干扰的比特所对应的CS信号分量的位置,然后根据这些位置确定新的CS信号和重构矩阵,再进行阈值迭代重构。仿真结果表明,本文算法在低误码率(BER)下得到精确重构的图像,在高BER下得到图像内容无缺失仅全局质量小幅下降的重构图像。因此,基于CS的图像压缩抗干扰重构算法能够较好地克服变换压缩方法以及阈值迭代重构算法抗... |
| 英文摘要 | When the images compressed by traditional transformation compression algorithms are transmitted over wireless channels, if Gaussian random interference causes the loss of the crucial transformation coefficients, the contents of the reconstructed images will be lost obviously and this will reduce the accuracy of the subsequent detection and recognition results greatly. In order to solve this problem, based on the characteristics of equal importance about each compressed sensing component, this paper first analyzes the feasibility of resisting the interference by removing the distorted compressed sensing signal components, then proposes an anti-interference image reconstruction algorithm. This algorithm first confirms the new compressed sensing signals and the new reconstruction matrix based on the locations of the corresponding compressed sensing signal components of the Gaussian-interfered bits, and then reconstructs the original images employing the iterative threshold algorithm. The simulation results demonstrate that our algorithm can reconstruct exact images at low bit error rates, and inexact images whose qualities are slightly lowered without loss of local contents at high bit error rates. As a result, our algorithm can overcome the deficiency in anti-interference ability of transformation compression algorithms and the iterative threshold algorithm, thus proposes a feasible scheme for the anti-interference problem that arises in wireless image transmission. |
| 收录类别 | EI ; CSCD |
| 资助信息 | 中科院光电信息处理重点实验室基金(OEIP-O-201102)资助项目 |
| 语种 | 中文 |
| CSCD记录号 | CSCD:5168215 |
| 公开日期 | 2014-11-03 |
| 源URL | [http://ir.sia.cn/handle/173321/15234]  |
| 专题 | 沈阳自动化研究所_光电信息技术研究室 |
| 推荐引用方式 GB/T 7714 | 杜梅,赵怀慈,赵春阳. 基于压缩感知的图像压缩抗干扰重构算法[J]. 光电子.激光,2014,25(5):1003-1009. |
| APA | 杜梅,赵怀慈,&赵春阳.(2014).基于压缩感知的图像压缩抗干扰重构算法.光电子.激光,25(5),1003-1009. |
| MLA | 杜梅,et al."基于压缩感知的图像压缩抗干扰重构算法".光电子.激光 25.5(2014):1003-1009. |
入库方式： OAI收割
来源：沈阳自动化研究所
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