| 一种新的Fabry-Perot干涉条纹处理方法 |
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| 引用本文： | 鄂非,高秋艳,艾勇. 一种新的Fabry-Perot干涉条纹处理方法[J]. 光学技术, 2009, 35(4) |
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| 作者姓名： | 鄂非 高秋艳 艾勇 |
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| 作者单位： | 中国计量学院光学与电子科技学院,杭州,310018;中国计量学院光学与电子科技学院,杭州,310018;中国计量学院光学与电子科技学院,杭州,310018 |
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| 基金项目： | 国家863计划资助项目 |
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| 摘 要： | 介绍了一种提取Fabry-Perot(法布里-帕罗)干涉条纹圆心点坐标和条纹半径的新方法。首先对干涉图像依次进行二值化处理,对所得到的条纹强度曲线进行均平滤波和自适应滤波,根据条纹灰度值强度余弦函数分布的特点,对条纹灰度值数据进行最小二乘法拟合,获得条纹强度峰值坐标,通过精确的迭代算法,进而获得Fabry-Perot干涉条纹圆心点的坐标;然后再对干涉条纹进行圆周积分,从而可以确定每级Fabry-Perot干涉条纹的半径长度。该方法可提高计算精度,减小计算误差。
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| 关 键 词： | Fabry-Perot干涉条纹 数字图像处理 最小二乘法 |
A New Method of processing the Fabry-Perot Interference Fringes |
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| E Fei,Gao Qiu-yan,Ai Yong. A New Method of processing the Fabry-Perot Interference Fringes[J]. Optical Technique, 2009, 35(4) |
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| Authors: | E Fei Gao Qiu-yan Ai Yong |
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| Affiliation: | E Fei,Gao Qiu-yan,Ai Yong(College of Optical and Electronic Technology,China Jiliang University,Hangzhou 310018,China) |
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| Abstract: | A new method of processing the Fabry-Perot interference fringes to acquire the center coordinates and the radius of the fringes is introduced.Firstly the interferogram is compressed in 2-gray level images;then after average filtering and adaptive filtering to the fringe intensity curves,according to the characteristics of cosine distribution of fringe intensity,by fitting the intensity data with using the least square method,the peak position of each fringe intensity distribution and the coordinates of the ... |
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| Keywords: | Fabry-Perot interference fringes digital image processing least square method |
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