The influence of camera calibration on nearshore bathymetry estimation from UAV videos

Measuring the nearshore bathymetry is critical in coastal management and morphodynamic studies. The recent advent of Unmanned Aerial Vehicles (UAVs), in combination with coastal video monitoring techniques, allows for an alternative and low cost evaluation of the nearshore bathymetry. Camera calibra...

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Detalles Bibliográficos
Autores: Simarro, Gonzalo, Calvete Manrique, Daniel|||0000-0002-5402-5137, Plomaritis, Theocharis, Moreno-Noguer, Francesc, Giannoukakou-Leontsini, Ifigeneia, Montes, Juan, Durán, Ruth
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/336879
Acceso en línea:https://hdl.handle.net/2117/336879
https://dx.doi.org/10.3390/rs13010150
Access Level:acceso abierto
Palabra clave:Coastal zone management
Unmanned Aerial Vehicles (UAVs)
Camera calibration
Bathymetry estimation
Coastal morphodynamics
Coastal management
Zones costaneres -- Ordenació
Àrees temàtiques de la UPC::Física
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spelling The influence of camera calibration on nearshore bathymetry estimation from UAV videosSimarro, GonzaloCalvete Manrique, Daniel|||0000-0002-5402-5137Plomaritis, TheocharisMoreno-Noguer, FrancescGiannoukakou-Leontsini, IfigeneiaMontes, JuanDurán, RuthCoastal zone managementUnmanned Aerial Vehicles (UAVs)Camera calibrationBathymetry estimationCoastal morphodynamicsCoastal managementZones costaneres -- OrdenacióÀrees temàtiques de la UPC::FísicaMeasuring the nearshore bathymetry is critical in coastal management and morphodynamic studies. The recent advent of Unmanned Aerial Vehicles (UAVs), in combination with coastal video monitoring techniques, allows for an alternative and low cost evaluation of the nearshore bathymetry. Camera calibration and stabilization is a critical issue in bathymetry estimation from video systems. This work introduces a new methodology in order to obtain such bathymetries, and it compares the results to echo-sounder ground truth data. The goal is to gain a better understanding on the influence of the camera calibration and stabilization on the inferred bathymetry. The results show how the proposed methodology allows for accurate evaluations of the bathymetry, with overall root mean square errors in the order of 40 cm. It is shown that the intrinsic calibration of the camera, related to the lens distortion, is the most critical aspect. Here, the intrinsic calibration that was obtained directly during the flight yields the best results.Multidisciplinary Digital Publishing Institute (MDPI)20212021-01-0520212021-02-04journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/336879https://dx.doi.org/10.3390/rs13010150reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3368792026-05-27T15:37:01Z
dc.title.none.fl_str_mv The influence of camera calibration on nearshore bathymetry estimation from UAV videos
title The influence of camera calibration on nearshore bathymetry estimation from UAV videos
spellingShingle The influence of camera calibration on nearshore bathymetry estimation from UAV videos
Simarro, Gonzalo
Coastal zone management
Unmanned Aerial Vehicles (UAVs)
Camera calibration
Bathymetry estimation
Coastal morphodynamics
Coastal management
Zones costaneres -- Ordenació
Àrees temàtiques de la UPC::Física
title_short The influence of camera calibration on nearshore bathymetry estimation from UAV videos
title_full The influence of camera calibration on nearshore bathymetry estimation from UAV videos
title_fullStr The influence of camera calibration on nearshore bathymetry estimation from UAV videos
title_full_unstemmed The influence of camera calibration on nearshore bathymetry estimation from UAV videos
title_sort The influence of camera calibration on nearshore bathymetry estimation from UAV videos
dc.creator.none.fl_str_mv Simarro, Gonzalo
Calvete Manrique, Daniel|||0000-0002-5402-5137
Plomaritis, Theocharis
Moreno-Noguer, Francesc
Giannoukakou-Leontsini, Ifigeneia
Montes, Juan
Durán, Ruth
author Simarro, Gonzalo
author_facet Simarro, Gonzalo
Calvete Manrique, Daniel|||0000-0002-5402-5137
Plomaritis, Theocharis
Moreno-Noguer, Francesc
Giannoukakou-Leontsini, Ifigeneia
Montes, Juan
Durán, Ruth
author_role author
author2 Calvete Manrique, Daniel|||0000-0002-5402-5137
Plomaritis, Theocharis
Moreno-Noguer, Francesc
Giannoukakou-Leontsini, Ifigeneia
Montes, Juan
Durán, Ruth
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Coastal zone management
Unmanned Aerial Vehicles (UAVs)
Camera calibration
Bathymetry estimation
Coastal morphodynamics
Coastal management
Zones costaneres -- Ordenació
Àrees temàtiques de la UPC::Física
topic Coastal zone management
Unmanned Aerial Vehicles (UAVs)
Camera calibration
Bathymetry estimation
Coastal morphodynamics
Coastal management
Zones costaneres -- Ordenació
Àrees temàtiques de la UPC::Física
description Measuring the nearshore bathymetry is critical in coastal management and morphodynamic studies. The recent advent of Unmanned Aerial Vehicles (UAVs), in combination with coastal video monitoring techniques, allows for an alternative and low cost evaluation of the nearshore bathymetry. Camera calibration and stabilization is a critical issue in bathymetry estimation from video systems. This work introduces a new methodology in order to obtain such bathymetries, and it compares the results to echo-sounder ground truth data. The goal is to gain a better understanding on the influence of the camera calibration and stabilization on the inferred bathymetry. The results show how the proposed methodology allows for accurate evaluations of the bathymetry, with overall root mean square errors in the order of 40 cm. It is shown that the intrinsic calibration of the camera, related to the lens distortion, is the most critical aspect. Here, the intrinsic calibration that was obtained directly during the flight yields the best results.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-01-05
2021
2021-02-04
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/336879
https://dx.doi.org/10.3390/rs13010150
url https://hdl.handle.net/2117/336879
https://dx.doi.org/10.3390/rs13010150
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300724

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