Threshold automatic selection hybrid phase unwrapping algorithm for digital holographic microscopy

Threshold automatic selection hybrid phase unwrapping algorithm for digital holographic microscopy
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数字全息显微镜阈值自动选择混合相位展开算法

DOI:
10.1080/09500340.2014.954649
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发表时间:
2015-01
影响因子:
1.3
通讯作者:
Dan Dan
Dan Dan
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Zhou Meiling;Min Junwei;Yao Baoli;Yu Xianghua;Lei Ming;Yan Shaohui;Yang Yanlong;Dan Dan

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传统的质量引导(QG)相位展开算法由于执行时间长而难以应用于数字全息显微术。针对这一问题,本文提出了一种阈值自动选择的混合相位解缠算法,该算法结合了现有的QG算法和洪水填充(FF)算法。通过自动选择阈值将原始相位图分为高质量和低质量两个子图,然后在每一级分别采用FF和QG解缠算法进行相位解缠。实验结果证明了该方法的可行性,且执行速度比原QG展开算法快得多。
Conventional quality-guided (QG) phase unwrapping algorithm is hard to be applied to digital holographic microscopy because of the long execution time. In this paper, we present a threshold automatic selection hybrid phase unwrapping algorithm that combines the existing QG algorithm and the flood-filled (FF) algorithm to solve this problem. The original wrapped phase map is divided into high- and low-quality sub-maps by selecting a threshold automatically, and then the FF and QG unwrapping algorithms are used in each level to unwrap the phase, respectively. The feasibility of the proposed method is proved by experimental results, and the execution speed is shown to be much faster than that of the original QG unwrapping algorithm.
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