This paper presents an automated phase unwrapping algorithm for unwrapping the isoclinic parameter in the true phase interval (-7)/2 to |D/2 . This unwrapping algorithm is combined with the four-step colour phase shifting technique. A dark-field plane polariscope system coupled with a white light source is used for recording photoelastic fringes. The phase unwrapping is designed incorporating the existence of the isotropic point.
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机译：本文介绍了一种自动相位展开算法，用于在真相间隔（-7）/ 2至| D / 2中的真正相位间隔（-7）/ 2中的异形斜面参数。该展开算法与四步复相移技术相结合。与白光源联接的暗场平面偏振镜系统用于记录光弹性条纹。相位展开设计包含各向同性点的存在。
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