Abstract
Quality-guided phase unwrapping is a widely used technique with different quality definitions and guiding strategies reported. It is thus necessary to do a detailed comparison of these approaches to choose the optimal quality map and guiding strategy. For quality maps, in the presence of noise, transform-based methods are found to be the best choice. However in the presence of discontinuities, phase unwrapping is itself unresolved and hence quality-guided phase unwrapping is not sufficient. For guiding strategies, classical, two-section, and stack-chain guiding strategies are chosen for comparison. If accuracy is the foremost criterion then the classical guiding strategy with a data structure of indexed interwoven linked list is best. If speed is of essence then the stack-chain guiding strategy is the one to use.
© 2011 Optical Society of America
Full Article | PDF ArticleMore Like This
Ming Zhao, Haixia Wang, and Qian Kemao
Appl. Opt. 54(24) 7462-7470 (2015)
Lourdes López-García, Anmi García-Arellano, and William Cruz-Santos
Appl. Opt. 57(12) 3126-3133 (2018)
Ming Zhao and Qian Kemao
Appl. Opt. 53(16) 3492-3500 (2014)