A phase unwrapping algorithm based on iterative zonal reconstruction technique

Suodong Ma; Fang Dai; Guojun Lu; Chunmei Zeng; Hua Shen

doi:10.1117/12.2500562

24 July 2018 A phase unwrapping algorithm based on iterative zonal reconstruction technique

Suodong Ma, Fang Dai, Guojun Lu, Chunmei Zeng, Hua Shen

Author Affiliations +

Proceedings Volume 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018); 108270C (2018) https://doi.org/10.1117/12.2500562
Event: Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 2018, Shanghai, China

Abstract

As a core part of phase retrieval, phase unwrapping is widely used in the field of phase-based optical testing. In the past few decades, a large number of phase unwrapping methods have been proposed which can be divided into the pathdependent and the path-independent ones. In general speaking, the former is faster but more susceptible to noises, while the latter is time-consuming but more robust. In consideration of the aforementioned problems, a phase unwrapping algorithm based on iterative zonal reconstruction technique is put forward in this investigation. For a wrapped phase map with a rectangle pupil, the proposed method can directly and speedy achieve the phase unwrapping with a simply zonal reconstruction. For the case of an arbitrary pupil, the phase unwrapping is realized by an iteratively compensated zonal reconstruction with a slightly increased amount of calculation. Simulations and experiments have been carried out to demonstrate the effectiveness of the proposed method as well.

Citation Download Citation

Suodong Ma, Fang Dai, Guojun Lu, Chunmei Zeng, and Hua Shen "A phase unwrapping algorithm based on iterative zonal reconstruction technique", Proc. SPIE 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 108270C (24 July 2018); https://doi.org/10.1117/12.2500562

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KEYWORDS

Reconstruction algorithms

Phase shift keying

Phase retrieval

Phase shifts

Cameras

Fringe analysis

LCDs

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