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A Coded Structured Light System Based on Primary Color Stripe Projection and Monochrome Imaging

Coded Structured Light techniques represent one of the most attractive research areas within the field of optical metrology. The coding procedures are typically based on projecting either a single pattern or a temporal sequence of patterns to provide 3D surface data. In this context, multi-slit or s...

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Detalles Bibliográficos
Autores principales: Barone, Sandro, Paoli, Alessandro, Razionale, Armando Viviano
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3859092/
https://www.ncbi.nlm.nih.gov/pubmed/24129018
http://dx.doi.org/10.3390/s131013802
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author Barone, Sandro
Paoli, Alessandro
Razionale, Armando Viviano
author_facet Barone, Sandro
Paoli, Alessandro
Razionale, Armando Viviano
author_sort Barone, Sandro
collection PubMed
description Coded Structured Light techniques represent one of the most attractive research areas within the field of optical metrology. The coding procedures are typically based on projecting either a single pattern or a temporal sequence of patterns to provide 3D surface data. In this context, multi-slit or stripe colored patterns may be used with the aim of reducing the number of projected images. However, color imaging sensors require the use of calibration procedures to address crosstalk effects between different channels and to reduce the chromatic aberrations. In this paper, a Coded Structured Light system has been developed by integrating a color stripe projector and a monochrome camera. A discrete coding method, which combines spatial and temporal information, is generated by sequentially projecting and acquiring a small set of fringe patterns. The method allows the concurrent measurement of geometrical and chromatic data by exploiting the benefits of using a monochrome camera. The proposed methodology has been validated by measuring nominal primitive geometries and free-form shapes. The experimental results have been compared with those obtained by using a time-multiplexing gray code strategy.
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spelling pubmed-38590922013-12-11 A Coded Structured Light System Based on Primary Color Stripe Projection and Monochrome Imaging Barone, Sandro Paoli, Alessandro Razionale, Armando Viviano Sensors (Basel) Article Coded Structured Light techniques represent one of the most attractive research areas within the field of optical metrology. The coding procedures are typically based on projecting either a single pattern or a temporal sequence of patterns to provide 3D surface data. In this context, multi-slit or stripe colored patterns may be used with the aim of reducing the number of projected images. However, color imaging sensors require the use of calibration procedures to address crosstalk effects between different channels and to reduce the chromatic aberrations. In this paper, a Coded Structured Light system has been developed by integrating a color stripe projector and a monochrome camera. A discrete coding method, which combines spatial and temporal information, is generated by sequentially projecting and acquiring a small set of fringe patterns. The method allows the concurrent measurement of geometrical and chromatic data by exploiting the benefits of using a monochrome camera. The proposed methodology has been validated by measuring nominal primitive geometries and free-form shapes. The experimental results have been compared with those obtained by using a time-multiplexing gray code strategy. Molecular Diversity Preservation International (MDPI) 2013-10-14 /pmc/articles/PMC3859092/ /pubmed/24129018 http://dx.doi.org/10.3390/s131013802 Text en © 2013 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Barone, Sandro
Paoli, Alessandro
Razionale, Armando Viviano
A Coded Structured Light System Based on Primary Color Stripe Projection and Monochrome Imaging
title A Coded Structured Light System Based on Primary Color Stripe Projection and Monochrome Imaging
title_full A Coded Structured Light System Based on Primary Color Stripe Projection and Monochrome Imaging
title_fullStr A Coded Structured Light System Based on Primary Color Stripe Projection and Monochrome Imaging
title_full_unstemmed A Coded Structured Light System Based on Primary Color Stripe Projection and Monochrome Imaging
title_short A Coded Structured Light System Based on Primary Color Stripe Projection and Monochrome Imaging
title_sort coded structured light system based on primary color stripe projection and monochrome imaging
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3859092/
https://www.ncbi.nlm.nih.gov/pubmed/24129018
http://dx.doi.org/10.3390/s131013802
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