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Optical Engineering

Unwrapping free Hilbert transform-based phase retrieval method in quantitative interferometric microscopy
Author(s): Shouyu Wang; Keding Yan; Nan Sun; Xiaolin Tian; Wei Yu; Yuanjie Li; Aihui Sun; Liang Xue
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Paper Abstract

In order to obtain quantitative phase distributions from interferograms, phase retrieval composed of phase extracting and unwrapping is adopted in quantitative interferometric microscopy. However, phase unwrapping often requires a long time, limiting applications such as high-speed phase observations and measurements. In order to accelerate the processing speed, a phase unwrapping free Hilbert transform (HT)-based phase retrieval method is proposed. Though another background interferogram without a sample is needed, phase unwrapping can be omitted, saving a large amount of time for phase recovery. Additionally, the proposed HT-based method can maintain more sample details, thus providing high-accurate quantitative phase imaging. Considering its fast speed and high accuracy in phase retrieval, it is believed that the unwrapping free HT-based phase retrieval method can be potentially applied in high throughput cellular observations and measurements.

Paper Details

Date Published: 23 November 2016
PDF: 8 pages
Opt. Eng. 55(11) 113105 doi: 10.1117/1.OE.55.11.113105
Published in: Optical Engineering Volume 55, Issue 11
Show Author Affiliations
Shouyu Wang, Jiangnan Univ. (China)
Keding Yan, Xi'an Univ. of Technology (China)
Nan Sun, Shanghai Parasol Renewable Energy Co. (China)
Xiaolin Tian, Jiangnan Univ. (China)
Wei Yu, Jiangnan Univ. (China)
Yuanjie Li, Jiangnan Univ. (China)
Aihui Sun, Jiangnan Univ. (China)
Liang Xue, Shanghai Univ. of Electric Power (China)

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