r.survey: a tool for calculating visibility of variable- size objects based on orientation
Identification of terrain surface features can be done using approaches such as visual observation or remote sensing image processing. Accurate detection of survey targets at the ground level primarily depends on human visual acuity or sensor resolution, and then on acquisition geometry (i.e. the re...
| Autores: | , |
|---|---|
| Formato: | artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Recursos: | Universidad del País Vasco |
| Repositorio: | Addi. Archivo Digital para la Docencia y la Investigación |
| OAI Identifier: | oai:addi.ehu.eus:10810/57947 |
| Acesso em linha: | http://hdl.handle.net/10810/57947 |
| Access Level: | acceso abierto |
| Palavra-chave: | terrain survey viewshed visibility geographic information system visual impact GIS recognition viewsheds |
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r.survey: a tool for calculating visibility of variable- size objects based on orientationBornaetxea Estela, TxominMarchesini, Ivanterrain surveyviewshedvisibilitygeographic information systemvisual impactGISrecognitionviewshedsIdentification of terrain surface features can be done using approaches such as visual observation or remote sensing image processing. Accurate detection of survey targets at the ground level primarily depends on human visual acuity or sensor resolution, and then on acquisition geometry (i.e. the relative position and orientation between the surveyor and the terrain). Further, the delimitation of the observer's viewshed boundary or of the sensor's ground footprint is sometimes insufficient to ensure that all enclosed targets can be correctly detected. Size and orientation can hamper ground target visibility. In this paper we describe a new release of r.survey, an open-source spatial analysis tool for terrain survey assessment. This tool offers the necessary information to assess how terrain morphology is perceived by observers and/or sensors by means of three basic visibility metrics: 3D distance, view angle, and solid angle. It is also fully customizable, allowing single or multiple observation points, ground or aerial point of view, and size setting of the observed target, making it useful for many different purposes.This work was supported by the postdoctoral fellowship program of the Basque Government obtained by one of the authors [grant numbers POS_2019_1_0020] in collaboration with the Geological Survey of Canada; the research group IT1029-16 of the University of the Basque Country (UPV/EHU); and the geomorphology group of CNR IRPI.Taylor & Francis202220222022info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/57947reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoIngléshttps://www.tandfonline.com/doi/full/10.1080/13658816.2021.1942476info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/es/© 2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/ licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.Atribución 3.0 Españaoai:addi.ehu.eus:10810/579472026-06-18T09:23:17Z |
| dc.title.none.fl_str_mv |
r.survey: a tool for calculating visibility of variable- size objects based on orientation |
| title |
r.survey: a tool for calculating visibility of variable- size objects based on orientation |
| spellingShingle |
r.survey: a tool for calculating visibility of variable- size objects based on orientation Bornaetxea Estela, Txomin terrain survey viewshed visibility geographic information system visual impact GIS recognition viewsheds |
| title_short |
r.survey: a tool for calculating visibility of variable- size objects based on orientation |
| title_full |
r.survey: a tool for calculating visibility of variable- size objects based on orientation |
| title_fullStr |
r.survey: a tool for calculating visibility of variable- size objects based on orientation |
| title_full_unstemmed |
r.survey: a tool for calculating visibility of variable- size objects based on orientation |
| title_sort |
r.survey: a tool for calculating visibility of variable- size objects based on orientation |
| dc.creator.none.fl_str_mv |
Bornaetxea Estela, Txomin Marchesini, Ivan |
| author |
Bornaetxea Estela, Txomin |
| author_facet |
Bornaetxea Estela, Txomin Marchesini, Ivan |
| author_role |
author |
| author2 |
Marchesini, Ivan |
| author2_role |
author |
| dc.subject.none.fl_str_mv |
terrain survey viewshed visibility geographic information system visual impact GIS recognition viewsheds |
| topic |
terrain survey viewshed visibility geographic information system visual impact GIS recognition viewsheds |
| description |
Identification of terrain surface features can be done using approaches such as visual observation or remote sensing image processing. Accurate detection of survey targets at the ground level primarily depends on human visual acuity or sensor resolution, and then on acquisition geometry (i.e. the relative position and orientation between the surveyor and the terrain). Further, the delimitation of the observer's viewshed boundary or of the sensor's ground footprint is sometimes insufficient to ensure that all enclosed targets can be correctly detected. Size and orientation can hamper ground target visibility. In this paper we describe a new release of r.survey, an open-source spatial analysis tool for terrain survey assessment. This tool offers the necessary information to assess how terrain morphology is perceived by observers and/or sensors by means of three basic visibility metrics: 3D distance, view angle, and solid angle. It is also fully customizable, allowing single or multiple observation points, ground or aerial point of view, and size setting of the observed target, making it useful for many different purposes. |
| publishDate |
2022 |
| dc.date.none.fl_str_mv |
2022 2022 2022 |
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info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10810/57947 |
| url |
http://hdl.handle.net/10810/57947 |
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Inglés |
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Inglés |
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https://www.tandfonline.com/doi/full/10.1080/13658816.2021.1942476 |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/3.0/es/ Atribución 3.0 España |
| eu_rights_str_mv |
openAccess |
| rights_invalid_str_mv |
http://creativecommons.org/licenses/by/3.0/es/ Atribución 3.0 España |
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application/pdf |
| dc.publisher.none.fl_str_mv |
Taylor & Francis |
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Taylor & Francis |
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reponame:Addi. Archivo Digital para la Docencia y la Investigación instname:Universidad del País Vasco |
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Universidad del País Vasco |
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Addi. Archivo Digital para la Docencia y la Investigación |
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Addi. Archivo Digital para la Docencia y la Investigación |
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