| 计算机辅助全自动位移散斑测量技术的研究 |
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| 引用本文： | 柳海波,任盛伟,林铁生.计算机辅助全自动位移散斑测量技术的研究[J].大气与环境光学学报,1997(6). |
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| 作者姓名： | 柳海波 任盛伟 林铁生 |
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| 作者单位： | 北方交通大学物理系!北京，100044 |
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| 摘 要： | 本文提出了一种计算机辅助的全自动位移散斑测量技术，用CCD摄像机拍摄物体位移前后的散斑图，然后重叠、分割图像，对于图像进行两次快速傅里叶变换，最后通过寻找峰值点位置，并由此计算得位移矢量．
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| 关 键 词： | 散斑测量法 快速傅里叶变换 插值法 |
Automatic Displacement Measurement Method's Research by Processing Laser Speckle Photographs with the Computer |
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| Liu Haibo, Hen Sbengwei, Lin Tiesheng.Automatic Displacement Measurement Method''''s Research by Processing Laser Speckle Photographs with the Computer[J].Journal of Atmospheric and Environmental Optics,1997(6). |
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| Authors: | Liu Haibo Hen Sbengwei Lin Tiesheng |
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| Abstract: | A new displacement measurement method is reported. We overlap two speckle photographs recorded before and after movign the sample, break up them into a series of subphotographs which are transformed two times with FFT, and finally determine the vector of displacements by seeking the site of data peaks. |
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| Keywords: | measurement with speckle FFT interpolation |
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