An Algorithm Combining the Branch-Cut Method and Rhombus Phase Unwrapping Algorithm

Han Jiang, Yuanping Xu, Chaolong Zhang, Zhijie Xu, Jian Huang, Hailong Tan, Jun Lu

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)


In order to solve the problem that the wrapped phase cannot be unwrapped effectively, this paper proposes an algorithm combining the branch-cut method and rhombus phase unwrapping algorithm for unwrap phase. The algorithm combines the advantages of the two methods, at first, the Goldstein's branch-cut method is used to find the residual points in the wrapping phase, then the rhombus phase unwrapping algorithm is used to unwrap the non-residual area phase, finally the phase of the residual area is obtained by using the cubic spline interpolation method, so as to ensure that the phase of each pixel can be unwrapped smoothly. The simulation results verify the feasibility and effectiveness of the algorithm, the combined phase unwrapping algorithm can effectively reduce the line and island phenomenon.

Original languageEnglish
Article number012068
Number of pages7
JournalJournal of Physics: Conference Series
Issue number1
Early online date13 Oct 2020
Publication statusPublished - 13 Oct 2020
Event3rd International Conference on Computer Information Science and Application Technology - Dali, China
Duration: 17 Jul 202019 Jul 2020
Conference number: 3


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