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Simultaneous measurement of translation and tilt using digital speckle photography

机译:使用数字散斑摄影同时测量平移和倾斜

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摘要

A Michelson-type digital speckle photographic system has been proposed in which one light beam produces a Fourier transform and another beam produces an image at a recording plane, without interfering between themselves. Because the optical Fourier transform is insensitive to translation and the imaging technique is insensitive to tilt, the proposed system is able to simultaneously and independently determine both surface tilt and translation by two separate recordings, one before and another after the surface motion, without the need to obtain solutions for simultaneous equations. Experimental results are presented to verify the theoretical analysis.
机译:已经提出了一种迈克尔逊型数字散斑照相系统,其中一个光束产生傅立叶变换,而另一光束在记录平面上产生图像,而不会相互干扰。由于光学傅里叶变换对平移不敏感,而成像技术对倾斜不敏感,因此所提出的系统能够通过两个单独的记录同时独立地确定表面倾斜和平移,一次是在表面运动之前,另一次是在表面运动之后,而无需以获得联立方程的解。实验结果证明了理论分析的正确性。

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