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Xian Wang,Suping Fang,Xindong Zhu,Jing Ji,Pengcheng Yang,Masaharu Komori,Aizoh Kubo 한국광학회 2017 Current Optics and Photonics Vol.1 No.6
The extraction of the valid measurement region from the interference fringe pattern is a significant stepwhen measuring gear tooth flank form deviation with grazing incidence interferometry, which will affectthe measurement accuracy. In order to overcome the drawback of the conventionally used method in whichthe object image pattern must be captured, an improved segmentation approach is proposed in this paper. The interference fringe patterns feature, which is smoothed by the nonlinear diffusion, would be extractedby the structure tensor first. And then they are incorporated into the vector-valued Chan-Vese model toextract the valid measurement region. This method is verified in a variety of interference fringe patterns,and the segmentation results show its feasibility and accuracy.