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The analysis of the structural parameter influences on measurement errors in a binocular 3D reconstruction system: a portable 3D system

This study used an analytical model to investigate the factors that affect the reconstruction accuracy composed of the baseline length, lens focal length, the angle between the optical axis and baseline, and the field of the view angle. Firstly, the theoretical expressions of the above factors and m...

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Autores principales: Sha, Ou, Zhang, Hongyu, Bai, Jing, Zhang, Yaoyu, Yang, Jianbai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PeerJ Inc. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10557943/
https://www.ncbi.nlm.nih.gov/pubmed/37810332
http://dx.doi.org/10.7717/peerj-cs.1610
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author Sha, Ou
Zhang, Hongyu
Bai, Jing
Zhang, Yaoyu
Yang, Jianbai
author_facet Sha, Ou
Zhang, Hongyu
Bai, Jing
Zhang, Yaoyu
Yang, Jianbai
author_sort Sha, Ou
collection PubMed
description This study used an analytical model to investigate the factors that affect the reconstruction accuracy composed of the baseline length, lens focal length, the angle between the optical axis and baseline, and the field of the view angle. Firstly, the theoretical expressions of the above factors and measurement errors are derived based on the binocular three-dimensional reconstruction model. Then, the structural parameters’ impact on the error propagation coefficient is analyzed and simulated using MATLAB software. The results show that structural parameters significantly impact the error propagation coefficient, and the reasonable range of structural parameters is pointed out. When the angle between the optical axis of the binocular camera and the baseline is between 30° and 55°, the ratio of the baseline length to the focal length can be reasonably reduced. In addition, using the field angle of the view that does not exceed 20° could reduce the error propagation coefficient. While the angle between the binocular optical axis and the baseline is between 40° and 50°, the reconstruction result has the highest accuracy, changing the angle out of this range will lead to an increase in the reconstruction error. The angle between the binocular optical axis and the baseline changes 30° through 60° leads to the error propagation coefficient being in a lower range. Finally, experimental verification and simulation results show that selecting reasonable structural parameters could significantly reduce measurement errors. This study proposes a model that constructs a binocular three-dimensional reconstruction system with high precision. A portable three-dimensional reconstruction system is built in the article.
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spelling pubmed-105579432023-10-07 The analysis of the structural parameter influences on measurement errors in a binocular 3D reconstruction system: a portable 3D system Sha, Ou Zhang, Hongyu Bai, Jing Zhang, Yaoyu Yang, Jianbai PeerJ Comput Sci Artificial Intelligence This study used an analytical model to investigate the factors that affect the reconstruction accuracy composed of the baseline length, lens focal length, the angle between the optical axis and baseline, and the field of the view angle. Firstly, the theoretical expressions of the above factors and measurement errors are derived based on the binocular three-dimensional reconstruction model. Then, the structural parameters’ impact on the error propagation coefficient is analyzed and simulated using MATLAB software. The results show that structural parameters significantly impact the error propagation coefficient, and the reasonable range of structural parameters is pointed out. When the angle between the optical axis of the binocular camera and the baseline is between 30° and 55°, the ratio of the baseline length to the focal length can be reasonably reduced. In addition, using the field angle of the view that does not exceed 20° could reduce the error propagation coefficient. While the angle between the binocular optical axis and the baseline is between 40° and 50°, the reconstruction result has the highest accuracy, changing the angle out of this range will lead to an increase in the reconstruction error. The angle between the binocular optical axis and the baseline changes 30° through 60° leads to the error propagation coefficient being in a lower range. Finally, experimental verification and simulation results show that selecting reasonable structural parameters could significantly reduce measurement errors. This study proposes a model that constructs a binocular three-dimensional reconstruction system with high precision. A portable three-dimensional reconstruction system is built in the article. PeerJ Inc. 2023-10-02 /pmc/articles/PMC10557943/ /pubmed/37810332 http://dx.doi.org/10.7717/peerj-cs.1610 Text en © 2023 Sha et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ Computer Science) and either DOI or URL of the article must be cited.
spellingShingle Artificial Intelligence
Sha, Ou
Zhang, Hongyu
Bai, Jing
Zhang, Yaoyu
Yang, Jianbai
The analysis of the structural parameter influences on measurement errors in a binocular 3D reconstruction system: a portable 3D system
title The analysis of the structural parameter influences on measurement errors in a binocular 3D reconstruction system: a portable 3D system
title_full The analysis of the structural parameter influences on measurement errors in a binocular 3D reconstruction system: a portable 3D system
title_fullStr The analysis of the structural parameter influences on measurement errors in a binocular 3D reconstruction system: a portable 3D system
title_full_unstemmed The analysis of the structural parameter influences on measurement errors in a binocular 3D reconstruction system: a portable 3D system
title_short The analysis of the structural parameter influences on measurement errors in a binocular 3D reconstruction system: a portable 3D system
title_sort analysis of the structural parameter influences on measurement errors in a binocular 3d reconstruction system: a portable 3d system
topic Artificial Intelligence
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10557943/
https://www.ncbi.nlm.nih.gov/pubmed/37810332
http://dx.doi.org/10.7717/peerj-cs.1610
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