Curtain-type phase unwrapping algorithm

• Published in: Optical engineering Vol. 61; no. 4; p. 044103
• Main Authors: Xu, Cai, Cao, Yiping, Wu, Haitao, Li, Hongmei, Zhang, Hechen, An, Haihua
• Format: Journal Article
• Language: English
• Published: Society of Photo-Optical Instrumentation Engineers 01.04.2022; SPIE
• Subjects: Algorithms; China; three-dimensional measurement; diamond algorithm; curtain-type algorithm; phase unwrapping

A curtain-type phase unwrapping algorithm is proposed. First, the 2  ×  2 closed curve method is used to find out the residual point of the wrapped phase to form the residual template, and the Otsu threshold method is used to binary the modulation of the deformed pattern to form the shadow template....