| 基于图像压缩传感的自动式光学单点成像系统 |
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| 引用本文： | 曹丽,钟舜聪,张涛,沈耀春.基于图像压缩传感的自动式光学单点成像系统[J].应用光学,2016,37(1):29-38. |
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| 作者姓名： | 曹丽 钟舜聪 张涛 沈耀春 |
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| 作者单位： | 1.福州大学 机械工程及自动化学院 光学和太赫兹及无损检测实验室,福建 福州350108; |
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| 基金项目： | 国家自然科学基金资助项目(51005077);教育部高学校博士学科点科研基金(博导类, 20133514110008); 福建省杰出青年基金滚动项目(2014J07007);国家卫生和计划生育委员会科研基金(WKJ-FJ-27);福建省质量技术监督局科技项目（FJQI2014008,FJQI2013024）;福建省高等学校学科带头人培养计划（闽教人〔2013〕71号）;福建省自然科学基金项目（2015J01234）。 |
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| 摘 要： | 基于图像压缩传感理论，在手动式光学单点成像系统的基础上研究了自动式光学单点成像系统。主要介绍了系统中自动编码转盘的设计以及编码块的获取，采用一系列优化的编码块图案作为测量矩阵，并利用最小均方差线性估计（MMSE）重构算法进行实验。实验研究表明，通过7.8% 低采样率即可实现对字符样本的重构。该自动编码转盘系统自动化程度较高，误差较小，而且可随意改变测量次数。
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| 关 键 词： | 压缩传感 稀疏性 测量矩阵 编码转盘 成像系统 |
Automatic single-point imaging system based on compressive sensing technique |
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| Institution: | 1.Laboratory of Optics,Terahertz and Non-destructive Testing &Evaluation,School of Mechanical Engineering and Automation,Fuzhou University,Fuzhou 350108,China;2.Fujian Key Laboratory of Medical Instrument and Pharmaceutical Technology,Fuzhou 350108,China;3.Department of Electrical Engineering and Electronics,University of Liverpool,Liverpool L69 3GJ,UK |
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| Abstract: | An automatic single-point imaging compressive sampling (CS) system was developed in the present work based on the concept of manual CS system. The design of the rotating coding disc and the way for obtaining the information of coding block were presented. A series of optimized coding blocks were used as sensing matrix and the minimum mean square error linear estimate (MMSE) algorithm was employed for image reconstruction. The quality of image reconstruction could be guaranteed when low sample rate of 7.8% was used. It is demonstrated that the proposed automatic system can work better than the manual one, with lower error, higher efficiency and more flexible in measurement times. |
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