Poster + Presentation + Paper
10 October 2020 Coherence effect compensation in diffuser-based quantitative phase imaging
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Conference Poster
Abstract
We demonstrate a method for increasing the effective resolution of phase retrieval based on the transport of intensity equation (TIE) named speckle high-resolution synthetic spectrum (speckle-HSS), as the upgraded version of the speckle-TIE approach we proposed before based on the quantitative phase imaging camera with a weak diffuser (QPICWD). Benefit from the phase gradient transfer function (PGTF) and phase transfer function (PTF), the phase blurring caused by the underestimation of phase gradient can be compensated correctly via combining TIE and PTF-based deconvolution. This method broadens the application range, alleviating the artifacts and enhancing the contrast and resolution in more accurate value. The experimental results of live HeLa cells have been presented, showing the effectiveness of the proposed method.
Conference Presentation
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Linpeng Lu, Jiasong Sun, Yao Fan, Jialin Zhang, Qian Chen, and Chao Zuo "Coherence effect compensation in diffuser-based quantitative phase imaging", Proc. SPIE 11549, Advanced Optical Imaging Technologies III, 1154918 (10 October 2020); https://doi.org/10.1117/12.2573662
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KEYWORDS
Phase imaging

Coherence (optics)

Speckle

Deconvolution

Image resolution

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