| 基于阈值分割的并行压缩鬼成像方法 |
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| 引用本文： | 杨照华,李大鹏,彭宏韬,吴令安.基于阈值分割的并行压缩鬼成像方法[J].光学技术,2016(4):289-293. |
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| 作者姓名： | 杨照华 李大鹏 彭宏韬 吴令安 |
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| 作者单位： | 1. 北京航空航天大学 仪器科学与光电工程学院,北京,100191;2. 中国科学院大学物理所,北京,100190 |
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| 基金项目： | 总装预研基金(37708901) |
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| 摘 要： | 为了提高鬼成像的速度,提出了基于阈值分割的并行压缩差分鬼成像方法。首先通过设置合理的阈值筛选出涨落较为明显的数据进行采样;然后再通过并行分块降低图像维度,提高整体运算速度;最后通过压缩感知重构算法重构图像。通过对图"BUAA"的半物理仿真以及透射物体"光"的实验结果表明,与普通的二阶赝热光关联成像相比,该方法能以更少的采样次数和运行时间重构图像,可提升成像信噪比。
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| 关 键 词： | 并行计算 差分鬼成像 压缩感知 鬼成像 |
Parallel compressive ghost imaging based on threshold segmentation |
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| YANG zhaohua;LI dapeng;PENG hongtao;WU lingan.Parallel compressive ghost imaging based on threshold segmentation[J].Optical Technique,2016(4):289-293. |
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| Authors: | YANG zhaohua;LI dapeng;PENG hongtao;WU lingan |
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| Institution: | YANG zhaohua;LI dapeng;PENG hongtao;WU lingan;School of Instrumentation Science and Optoelectronics Engineering,Beihang University;Institute of Physics,Chinese Academy of Sciences; |
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| Abstract: | To improve the speed of ghost imaging,the parallel compressed differential ghost imaging method is pro-posed based on threshold segmentation (TS-PCGI).Firstly,the large fluctuation of sampled data is selected by setting a reasonable threshold.Secondly,parallel computing divides the image into four parts.Finally,the image is restored through compressed sensing reconstruction algorithm.The results of a semi-physical simulated figure“BUAA”and ex-perimental obj ectlightshow that this method can restore the obj ect image with less sampling and time compared with conventional second-order correlated imaging.The signal noise ratio is improved. |
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| Keywords: | parallel computing difference ghost imaging compressed sensing ghost imaging |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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