激光技术Issue(3)：335-341,7.DOI:10.7510/jgjs.issn.1001-3806.2014.03.011
Goldstein枝切法对存在间断相位缺陷的解缠研究
Study on unwrapping of discontinuous phase flaws based on Goldstein branch-cut theory
曾凡光 1吴光敏 1MAI John D 2陈剑鸣1
作者信息
- 1. 昆明理工大学理学院，昆明650500
- 2. 香港城市大学机械与生物医学工程学系，香港
- 折叠
摘要
Abstract
The Goldstein branch-cut method is a traditional method for phase unwrapping .Its phase unwrapping result is easily affected by phase residues caused by noise and discontinuous phase flaws in practice .To characterize effect of discontinuous phase on unwrapping algorithm , after simulating a data base for discontinuous phase , unwrapping was studied with Goldstein branch-cut phase unwrapping method .The effect of the residual phase on the size of the searching window radius was focused on specifically .The unwrapped phase was compared with the actual phase .The results show that accurate unwrapped phases can be obtained in situations with one and two disjointed discontinuity flaws . Accurate unwrapping phase results cannot be obtained in situations with two crossing phase discontinuous flaws .Good results can not be obtained for two crossing phase discontinuous flaws .Different discontinuous phase flaws have different effective branch cut searching window radius .There is an effective searching window radius for the Goldstein branch-cut approach .Those results can provide reference to research of the phase unwrapping only and jointly with Goldstein branch -cut.关键词
信息光学/枝切法/相位缺陷/搜索窗口半径Key words
information optics/branch-cut theory/discontinuous phase flaw/searching window radius分类
数理科学引用本文复制引用
曾凡光,吴光敏,MAI John D,陈剑鸣..Goldstein枝切法对存在间断相位缺陷的解缠研究[J].激光技术,2014,(3):335-341,7.
