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Proceedings Paper

Quantitative phase from defocused intensity by image deconvolution
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Paper Abstract

We present a method for quantitative phase recovery using the axially defocused intensity information based on the phase optical transfer function in defocused situation. The image formation process is linearized by subtraction of two intensity images with equal and opposite defocus distances and quantitative phase information is separated and extracted by solving an inverse problem with Wiener filtering. Experiments confirm the accuracy and stability of the proposed method outperforms the transport-of-intensity reconstruction method.

Paper Details

Date Published: 22 June 2013
PDF: 6 pages
Proc. SPIE 8769, International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013), 87691Q (22 June 2013); doi: 10.1117/12.2018759
Show Author Affiliations
Chao Zuo, Nanjing Univ. of Science and Technology (China)
Nanyang Technological Univ. (Singapore)
Beijing Institute of Technology (China)
Qian Chen, Nanjing Univ. of Science and Technology (China)
Beijing Institute of Technology (China)
Anand Asundi, Nanyang Technological Univ. (Singapore)


Published in SPIE Proceedings Vol. 8769:
International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013)
Chenggen Quan; Kemao Qian; Anand Asundi, Editor(s)

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