Digital Model in Close-Range Photogrammetry Using a Smartphone Camera

Smartphones recently expanded the potential for low-cost close-range photogrammetry for 3D modeling. They enable the simultaneous collection of large amounts of data for a variety of requirements. It is possible to calculate image orientation elements and triangular coordinates in phases as in Relat...

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Autores principales:	Ataiwe Tariq N., Hatem Israa, Al Sharaa Hisham M. J.
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	photogrammetry close range smartphone camera 3d constructing Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/cbc3a9f0c9ca4a7e99c61c960f1b199d
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spelling	oai:doaj.org-article:cbc3a9f0c9ca4a7e99c61c960f1b199d2021-11-12T11:43:51ZDigital Model in Close-Range Photogrammetry Using a Smartphone Camera2267-124210.1051/e3sconf/202131804005https://doaj.org/article/cbc3a9f0c9ca4a7e99c61c960f1b199d2021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/94/e3sconf_icge2021_04005.pdfhttps://doaj.org/toc/2267-1242Smartphones recently expanded the potential for low-cost close-range photogrammetry for 3D modeling. They enable the simultaneous collection of large amounts of data for a variety of requirements. It is possible to calculate image orientation elements and triangular coordinates in phases as in Relative and Absolute image orientation. This study demonstrates the photogrammetric 3D reconstruction approach that performs on tablets and smartphones as well. Images are taken with smartphone cameras of iPhone 6 and then calibrated automatically using normal calibration model for photogrammetry and computer vision on a PC, depend on Agisoft Lens add-on that imbedded in Agisoft program, and MATLAB camera calibration Toolbox, and by using an oriented bunch of images of chessboard pattern for large point cloud-based picture using matching. The camera calibration results indicate that the calibration processing routines pass without any error, and the accuracy of estimated IOPs was convenient compared with non-metric digital cameras and are more accurate in Agisoft Lens in terms of standard error. For the 3D model, 435 cameras were used, 428 cameras located from 435 are aligned in two photogrammetric software, Agisoft PhotoScan, and LPS. The number of tie points that are used in LPS is 10 tie points, and 4 control points which used to estimate the EOPs, and the number of tie points that are regenerated in Agisoft PhotoScan were 135.605 points, the number of Dense cloud 3,716,912 points are generated, for 3D model a number of 316,253 faces are generated, after processing the tiled model generated (6 levels, 1.25 cm/pix), the generated DEM having (2136×1774/pix), the dimensions of the generated high-resolution orthomosaic are (5520×4494, 4.47 cm/pix). For accuracy assessment, the Xerr. = 0.292 m, Yerr. = 0.38577 m, Zerr.= 0.2889 m, and the total RMS = 0.563 m in the estimated locations of the exterior orientation parameters.Ataiwe Tariq N.Hatem IsraaAl Sharaa Hisham M. J.EDP Sciencesarticlephotogrammetryclose rangesmartphone camera3dconstructingEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 318, p 04005 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	photogrammetry close range smartphone camera 3d constructing Environmental sciences GE1-350
spellingShingle	photogrammetry close range smartphone camera 3d constructing Environmental sciences GE1-350 Ataiwe Tariq N. Hatem Israa Al Sharaa Hisham M. J. Digital Model in Close-Range Photogrammetry Using a Smartphone Camera
description	Smartphones recently expanded the potential for low-cost close-range photogrammetry for 3D modeling. They enable the simultaneous collection of large amounts of data for a variety of requirements. It is possible to calculate image orientation elements and triangular coordinates in phases as in Relative and Absolute image orientation. This study demonstrates the photogrammetric 3D reconstruction approach that performs on tablets and smartphones as well. Images are taken with smartphone cameras of iPhone 6 and then calibrated automatically using normal calibration model for photogrammetry and computer vision on a PC, depend on Agisoft Lens add-on that imbedded in Agisoft program, and MATLAB camera calibration Toolbox, and by using an oriented bunch of images of chessboard pattern for large point cloud-based picture using matching. The camera calibration results indicate that the calibration processing routines pass without any error, and the accuracy of estimated IOPs was convenient compared with non-metric digital cameras and are more accurate in Agisoft Lens in terms of standard error. For the 3D model, 435 cameras were used, 428 cameras located from 435 are aligned in two photogrammetric software, Agisoft PhotoScan, and LPS. The number of tie points that are used in LPS is 10 tie points, and 4 control points which used to estimate the EOPs, and the number of tie points that are regenerated in Agisoft PhotoScan were 135.605 points, the number of Dense cloud 3,716,912 points are generated, for 3D model a number of 316,253 faces are generated, after processing the tiled model generated (6 levels, 1.25 cm/pix), the generated DEM having (2136×1774/pix), the dimensions of the generated high-resolution orthomosaic are (5520×4494, 4.47 cm/pix). For accuracy assessment, the Xerr. = 0.292 m, Yerr. = 0.38577 m, Zerr.= 0.2889 m, and the total RMS = 0.563 m in the estimated locations of the exterior orientation parameters.
format	article
author	Ataiwe Tariq N. Hatem Israa Al Sharaa Hisham M. J.
author_facet	Ataiwe Tariq N. Hatem Israa Al Sharaa Hisham M. J.
author_sort	Ataiwe Tariq N.
title	Digital Model in Close-Range Photogrammetry Using a Smartphone Camera
title_short	Digital Model in Close-Range Photogrammetry Using a Smartphone Camera
title_full	Digital Model in Close-Range Photogrammetry Using a Smartphone Camera
title_fullStr	Digital Model in Close-Range Photogrammetry Using a Smartphone Camera
title_full_unstemmed	Digital Model in Close-Range Photogrammetry Using a Smartphone Camera
title_sort	digital model in close-range photogrammetry using a smartphone camera
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/cbc3a9f0c9ca4a7e99c61c960f1b199d
work_keys_str_mv	AT ataiwetariqn digitalmodelincloserangephotogrammetryusingasmartphonecamera AT hatemisraa digitalmodelincloserangephotogrammetryusingasmartphonecamera AT alsharaahishammj digitalmodelincloserangephotogrammetryusingasmartphonecamera
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Digital Model in Close-Range Photogrammetry Using a Smartphone Camera

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