title: Quality-guided phase unwrapping technique: comparison of quality maps and guiding strategies.
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.
authors: School of Computer Engineering, Nanyang Technological University, Singapore.
authors: Ming
authors: M
authors: Zhao
authors: Lei
authors: L
authors: Huang
authors: Qican
authors: Q
authors: Zhang
authors: Xianyu
authors: X
authors: Su
authors: Anand
authors: A
authors: Asundi
authors: Qian
authors: Q
authors: Kemao