| 电子散斑相位检测的滤波方法研究 |
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| 引用本文： | 宋凡峰,王开福,郑蓝.电子散斑相位检测的滤波方法研究[J].四川激光,2007,28(3):50-51. |
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| 作者姓名： | 宋凡峰 王开福 郑蓝 |
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| 作者单位： | 南京航空航天大学航空宇航学院，南京航空航天大学航空宇航学院，南京航空航天大学航空宇航学院 南京 210016，南京 210016，南京 210016 |
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| 摘 要： | 本文提出空域中值迭代滤波方法和频域离散余弦变换滤波方法,利用三步相移技术成功实现相位检测.对两种方法所得结果进行了比较.实验结果表明这两种方法对ESPI条纹图像进行处理是有效的.
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| 关 键 词： | 电子散斑干涉 低通滤波 中值迭代滤波 余弦变换滤波 电子散斑 相位检测 滤波方法 研究 speckle pattern interferometry electronic phase measurement method filtering Investigation 处理 条纹图像 ESPI 实验 比较 结果 相移技术 利用 离散余弦变换 迭代 |
| 文章编号： | 0253-2743（2007）03-0050-02 |
| 修稿时间： | 2006-12-05 |
Investigation of filtering method for phase measurement in electronic speckle pattern interferometry (ESPI) |
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| SONG Fan-feng,WANG Kai-fu,ZHENG Lan.Investigation of filtering method for phase measurement in electronic speckle pattern interferometry (ESPI)[J].Laser Journal,2007,28(3):50-51. |
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| Authors: | SONG Fan-feng WANG Kai-fu ZHENG Lan |
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| Affiliation: | College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 210016, China |
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| Abstract: | In this paper,two low-pass filtering methods,the median-iteration filtering technique in space domain and the discrete-cosine-transform (DCT)filtering technique in frequency domain,are proposed.These methods have been used successfully for the measurements of phase distributions by using the 3-step phase-shifting technique.A comparison between the results obtained,respectively,from these methods is given and the experimental results have shown that these methods are feasible used for image processing of ESPI fringes. |
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| Keywords: | ESPI low-pass filtering median-iteration filtering DCT filtering |
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