Quantitative phase from defocused intensity by image deconvolution

Quantitative phase from defocused intensity by image deconvolution

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 qu...

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Main Authors: Zuo, Chao, Chen, Qian, Asundi, Anand Krishna
Other Authors: School of Mechanical and Aerospace Engineering
Format: Conference or Workshop Item
Language:English
Published: 2013
Online Access:https://hdl.handle.net/10356/98380
http://hdl.handle.net/10220/13348
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-983802023-03-04T17:07:31Z Quantitative phase from defocused intensity by image deconvolution Zuo, Chao Chen, Qian Asundi, Anand Krishna School of Mechanical and Aerospace Engineering International Conference on Optics in Precision Engineering and Nanotechnology (2013 : Singapore) 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. Published version 2013-09-05T08:45:13Z 2019-12-06T19:54:34Z 2013-09-05T08:45:13Z 2019-12-06T19:54:34Z 2013 2013 Conference Paper Zuo, C., Chen, Q., & Asundi, A. K. (2013). Quantitative phase from defocused intensity by image deconvolution. International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013), 8769. https://hdl.handle.net/10356/98380 http://hdl.handle.net/10220/13348 10.1117/12.2018759 en © 2013 Society of Photo-Optical Instrumentation Engineers (SPIE). This paper was published in International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013) and is made available as an electronic reprint (preprint) with permission of SPIE. The paper can be found at the following official DOI: [http://dx.doi.org/10.1117/12.2018759].  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
description 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.
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Zuo, Chao
Chen, Qian
Asundi, Anand Krishna
format Conference or Workshop Item
author Zuo, Chao
Chen, Qian
Asundi, Anand Krishna
spellingShingle Zuo, Chao
Chen, Qian
Asundi, Anand Krishna
Quantitative phase from defocused intensity by image deconvolution
author_sort Zuo, Chao
title Quantitative phase from defocused intensity by image deconvolution
title_short Quantitative phase from defocused intensity by image deconvolution
title_full Quantitative phase from defocused intensity by image deconvolution
title_fullStr Quantitative phase from defocused intensity by image deconvolution
title_full_unstemmed Quantitative phase from defocused intensity by image deconvolution
title_sort quantitative phase from defocused intensity by image deconvolution
publishDate 2013
url https://hdl.handle.net/10356/98380
http://hdl.handle.net/10220/13348
_version_ 1759855008379043840

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