@article { , title = {Branch cutting algorithm for unwrapping photoelastic phase map with isotropic point}, abstract = {A branch cutting algorithm is proposed to solve the wrapped isoclinic causing isochromatic discontinuity and thus to decouple the isoclinicisochromatic interaction of photoelastic phase maps. Rather than pixel by pixel, the branch-cutting isoclinic wrapped map is then restored by a modified regional approach and is proved to be more time-effective and less effort needed than the authors earlier algorithm. The decoupled isochromatic data can be handled easily afterward. Two type of simulated samples (i.e., specimens with and without isotropic points) are used to detail why and how isoclinic and isochromatic are interactive with each other and the decoupling method of the present study. Experimental works prove the effectiveness, robustness and simplicity of the newly developed algorithm. © 2011 Elsevier Ltd. All rights reserved.}, doi = {10.1016/j.optlaseng.2011.10.013}, issn = {0143-8166}, issue = {5}, journal = {Optics and Lasers in Engineering}, pages = {619-631}, publicationstatus = {Published}, publisher = {Elsevier}, url = {https://uwe-repository.worktribe.com/output/947963}, volume = {50}, keyword = {Centre for Machine Vision, Bristol Robotics Laboratory, specular freeformsurfaces, dynamic inspection, defect detection, multi-scale lineextraction, algorithm}, year = {2012}, author = {Zhang, Yao Ting and Huang, Min Jui and Liang, Hua Rong and Lao, Fu You and Wedowski, Raphael and Atkinson, Gary and Smith, Melvyn and Smith, Lyndon} }