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首页> 外文期刊>Journal of the Korean Physical Society >Optimizations of Canny Edge Detection in Ghost Imaging
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Optimizations of Canny Edge Detection in Ghost Imaging

机译：鬼映像中的罐头边缘检测优化

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摘要

An optimization of the Canny edge detector's application in ghost imaging is presented. Based on the pseudo-thermal light ghost imaging scheme with a binary object, a thin and accurate edge map can be extracted by using a Gaussian-filtering-optimized Canny edge detector. The scale of the Gaussian filter in Canny edge detection algorithm is the dominate factor in the performance of the edge detector, and can be evaluated by the bit error rate of reconstructed binary image based on the edge map. Simulation results indicate the optimal window size of Gaussian filter for ghost imaging is proportional to the full width at half maximum of the self-correlation function in the idler arm samples without any priori knowledge of the object. Experimental results show that, with an appropriate Gaussian filter, the reconstructed binary image can approach the original binary object with the minimum bit error rate, which means the edge detection result is optimal.
机译：介绍了Canny Edge检测器在Ghost成像中的应用的优化。 基于具有二进制物体的伪热光重影成像方案，可以通过使用高斯滤波优化的罐头边缘检测器来提取薄和精确的边缘图。 Canny边缘检测算法中高斯滤波器的尺度是边缘检测器性能的主导因子，并且可以通过基于边缘图的重建二进制图像的误码率来评估。 仿真结果表明，Ghost成像的高斯滤波器的最佳窗口大小与惰轮上的自相关函数的半最大宽度成比例，而不是对象的任何先验知识。 实验结果表明，利用适当的高斯滤波器，重建的二进制图像可以具有最小误码率的原始二进制对象，这意味着边缘检测结果是最佳的。

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  • 来源
  • 作者

    Wu Guohua; Yang Dongyue; Chang Chen; Yin Longfei; Luo Bin; Guo Hong;

  • 作者单位

    Beijing Univ Posts &

    Telecommun Sch Elect Engn Beijing 100876 Peoples R China;

    Beijing Univ Posts &

    Telecommun Sch Elect Engn Beijing 100876 Peoples R China;

    Beijing Univ Posts &

    Telecommun Sch Elect Engn Beijing 100876 Peoples R China;

    Beijing Univ Posts &

    Telecommun Sch Elect Engn Beijing 100876 Peoples R China;

    Beijing Univ Posts &

    Telecommun State Key Lab Informat Photon &

    Opt Commun Beijing 100876 Peoples R China;

    Peking Univ State Key Lab Adv Opt Commun Syst &

    Networks Sch Elect Engn &

    Comp Sci Beijing 100871 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 物理学;
  • 关键词

    Coherent imaging; Imaging processing; Quantum optics;

    机译：相干成像;成像处理;量子光学;

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