23 November 2016 Unwrapping free Hilbert transform-based phase retrieval method in quantitative interferometric microscopy
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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.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Shouyu Wang, Keding Yan, Nan Sun, Xiaolin Tian, Wei Yu, Yuanjie Li, Aihui Sun, Liang Xue, "Unwrapping free Hilbert transform-based phase retrieval method in quantitative interferometric microscopy," Optical Engineering 55(11), 113105 (23 November 2016). https://doi.org/10.1117/1.OE.55.11.113105 . Submission:
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