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Three-dimensional phantoms for curvature correction in spatial frequency domain imaging
The sensitivity to surface profile of non-contact optical imaging, such as spatial frequency domain imaging, may lead to incorrect measurements of optical properties and consequently erroneous extrapolation of physiological parameters of interest. Previous correction methods have focused on calibrat...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Optical Society of America
2012
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3370962/ https://www.ncbi.nlm.nih.gov/pubmed/22741068 http://dx.doi.org/10.1364/BOE.3.001200 |
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author | Nguyen, Thu T. A. Le, Hanh N. D. Vo, Minh Wang, Zhaoyang Luu, Long Ramella-Roman, Jessica C. |
author_facet | Nguyen, Thu T. A. Le, Hanh N. D. Vo, Minh Wang, Zhaoyang Luu, Long Ramella-Roman, Jessica C. |
author_sort | Nguyen, Thu T. A. |
collection | PubMed |
description | The sensitivity to surface profile of non-contact optical imaging, such as spatial frequency domain imaging, may lead to incorrect measurements of optical properties and consequently erroneous extrapolation of physiological parameters of interest. Previous correction methods have focused on calibration-based, model-based, and computation-based approached. We propose an experimental method to correct the effect of surface profile on spectral images. Three-dimensional (3D) phantoms were built with acrylonitrile butadiene styrene (ABS) plastic using an accurate 3D imaging and an emergent 3D printing technique. In this study, our method was utilized for the correction of optical properties (absorption coefficient μ(a) and reduced scattering coefficient μ(s)′) of objects obtained with a spatial frequency domain imaging system. The correction method was verified on three objects with simple to complex shapes. Incorrect optical properties due to surface with minimum 4 mm variation in height and 80 degree in slope were detected and improved, particularly for the absorption coefficients. The 3D phantom-based correction method is applicable for a wide range of purposes. The advantages and drawbacks of the 3D phantom-based correction methods are discussed in details. |
format | Online Article Text |
id | pubmed-3370962 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Optical Society of America |
record_format | MEDLINE/PubMed |
spelling | pubmed-33709622012-06-27 Three-dimensional phantoms for curvature correction in spatial frequency domain imaging Nguyen, Thu T. A. Le, Hanh N. D. Vo, Minh Wang, Zhaoyang Luu, Long Ramella-Roman, Jessica C. Biomed Opt Express Calibration, Validation and Phantom Studies The sensitivity to surface profile of non-contact optical imaging, such as spatial frequency domain imaging, may lead to incorrect measurements of optical properties and consequently erroneous extrapolation of physiological parameters of interest. Previous correction methods have focused on calibration-based, model-based, and computation-based approached. We propose an experimental method to correct the effect of surface profile on spectral images. Three-dimensional (3D) phantoms were built with acrylonitrile butadiene styrene (ABS) plastic using an accurate 3D imaging and an emergent 3D printing technique. In this study, our method was utilized for the correction of optical properties (absorption coefficient μ(a) and reduced scattering coefficient μ(s)′) of objects obtained with a spatial frequency domain imaging system. The correction method was verified on three objects with simple to complex shapes. Incorrect optical properties due to surface with minimum 4 mm variation in height and 80 degree in slope were detected and improved, particularly for the absorption coefficients. The 3D phantom-based correction method is applicable for a wide range of purposes. The advantages and drawbacks of the 3D phantom-based correction methods are discussed in details. Optical Society of America 2012-05-03 /pmc/articles/PMC3370962/ /pubmed/22741068 http://dx.doi.org/10.1364/BOE.3.001200 Text en ©2012 Optical Society of America http://creativecommons.org/licenses/by-nc-nd/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 Unported License, which permits download and redistribution, provided that the original work is properly cited. This license restricts the article from being modified or used commercially. |
spellingShingle | Calibration, Validation and Phantom Studies Nguyen, Thu T. A. Le, Hanh N. D. Vo, Minh Wang, Zhaoyang Luu, Long Ramella-Roman, Jessica C. Three-dimensional phantoms for curvature correction in spatial frequency domain imaging |
title | Three-dimensional phantoms for curvature correction in spatial frequency domain imaging |
title_full | Three-dimensional phantoms for curvature correction in spatial frequency domain imaging |
title_fullStr | Three-dimensional phantoms for curvature correction in spatial frequency domain imaging |
title_full_unstemmed | Three-dimensional phantoms for curvature correction in spatial frequency domain imaging |
title_short | Three-dimensional phantoms for curvature correction in spatial frequency domain imaging |
title_sort | three-dimensional phantoms for curvature correction in spatial frequency domain imaging |
topic | Calibration, Validation and Phantom Studies |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3370962/ https://www.ncbi.nlm.nih.gov/pubmed/22741068 http://dx.doi.org/10.1364/BOE.3.001200 |
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