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Saturation-Induced Phase Error Compensation Method Using Complementary Phase

Intensity saturation can induce phase error and, thus, measurement error in fringe projection profilometry. To reduce saturation-induced phase errors, a compensation method is developed. The mathematical model of saturation-induced phase errors is analyzed for N-step phase-shifting profilometry, and...

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Autores principales: Wan, Yingying, Cao, Yiping, Xu, Min, Tang, Tao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10301131/
https://www.ncbi.nlm.nih.gov/pubmed/37374843
http://dx.doi.org/10.3390/mi14061258
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author Wan, Yingying
Cao, Yiping
Xu, Min
Tang, Tao
author_facet Wan, Yingying
Cao, Yiping
Xu, Min
Tang, Tao
author_sort Wan, Yingying
collection PubMed
description Intensity saturation can induce phase error and, thus, measurement error in fringe projection profilometry. To reduce saturation-induced phase errors, a compensation method is developed. The mathematical model of saturation-induced phase errors is analyzed for N-step phase-shifting profilometry, and the phase error is approximately N-folder of the frequency of the projected fringe. Additional N-step phase-shifting fringe patterns with initial phase-shift π/N are projected for generating a complementary phase map. The final phase map is obtained by averaging the original phase map extracted from the original fringe patterns and the complementary phase map, and then the phase error can be canceled out. Both simulations and experiments demonstrated that the proposed method can substantially reduce the saturation-induced phase error and realize accurate measurements for a highly dynamic range of scenarios.
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spelling pubmed-103011312023-06-29 Saturation-Induced Phase Error Compensation Method Using Complementary Phase Wan, Yingying Cao, Yiping Xu, Min Tang, Tao Micromachines (Basel) Article Intensity saturation can induce phase error and, thus, measurement error in fringe projection profilometry. To reduce saturation-induced phase errors, a compensation method is developed. The mathematical model of saturation-induced phase errors is analyzed for N-step phase-shifting profilometry, and the phase error is approximately N-folder of the frequency of the projected fringe. Additional N-step phase-shifting fringe patterns with initial phase-shift π/N are projected for generating a complementary phase map. The final phase map is obtained by averaging the original phase map extracted from the original fringe patterns and the complementary phase map, and then the phase error can be canceled out. Both simulations and experiments demonstrated that the proposed method can substantially reduce the saturation-induced phase error and realize accurate measurements for a highly dynamic range of scenarios. MDPI 2023-06-16 /pmc/articles/PMC10301131/ /pubmed/37374843 http://dx.doi.org/10.3390/mi14061258 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wan, Yingying
Cao, Yiping
Xu, Min
Tang, Tao
Saturation-Induced Phase Error Compensation Method Using Complementary Phase
title Saturation-Induced Phase Error Compensation Method Using Complementary Phase
title_full Saturation-Induced Phase Error Compensation Method Using Complementary Phase
title_fullStr Saturation-Induced Phase Error Compensation Method Using Complementary Phase
title_full_unstemmed Saturation-Induced Phase Error Compensation Method Using Complementary Phase
title_short Saturation-Induced Phase Error Compensation Method Using Complementary Phase
title_sort saturation-induced phase error compensation method using complementary phase
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10301131/
https://www.ncbi.nlm.nih.gov/pubmed/37374843
http://dx.doi.org/10.3390/mi14061258
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