Use of UAV-Photogrammetry for Quasi-Vertical Wall Surveying
In this study, an analysis of the capabilities of unmanned aerial vehicle (UAV) photogrammetry to obtain point clouds from areas with a near-vertical inclination was carried out. For this purpose, 18 different combinations were proposed, varying the number of ground control points (GCPs), the adequa...
| Main Authors: | , , |
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| Format: | info:eu-repo/semantics/article |
| Language: | English |
| Published: |
MDPI
2020
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10835/8348 |
| _version_ | 1789406373147049984 |
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| author | Martínez Carricondo, Patricio Agüera Vega, Francisco Carvajal Ramírez, Fernando |
| author_facet | Martínez Carricondo, Patricio Agüera Vega, Francisco Carvajal Ramírez, Fernando |
| author_sort | Martínez Carricondo, Patricio |
| collection | DSpace |
| description | In this study, an analysis of the capabilities of unmanned aerial vehicle (UAV) photogrammetry to obtain point clouds from areas with a near-vertical inclination was carried out. For this purpose, 18 different combinations were proposed, varying the number of ground control points (GCPs), the adequacy (or not) of the distribution of GCPs, and the orientation of the photographs (nadir and oblique). The results have shown that under certain conditions, the accuracy achieved was similar to those obtained by a terrestrial laser scanner (TLS). For this reason, it is necessary to increase the number of GCPs as much as possible in order to cover a whole study area. In the event that this is not possible, the inclusion of oblique photography ostensibly improves results; therefore, it is always advisable since they also improve the geometric descriptions of break lines or sudden changes in slope. In this sense, UAVs seem to be a more economic substitute compared to TLS for vertical wall surveying. |
| format | info:eu-repo/semantics/article |
| id | oai:repositorio.ual.es:10835-8348 |
| institution | Universidad de Cuenca |
| language | English |
| publishDate | 2020 |
| publisher | MDPI |
| record_format | dspace |
| spelling | oai:repositorio.ual.es:10835-83482023-04-12T19:29:15Z Use of UAV-Photogrammetry for Quasi-Vertical Wall Surveying Martínez Carricondo, Patricio Agüera Vega, Francisco Carvajal Ramírez, Fernando UAV photogrammetry 3D-model surveying vertical wall In this study, an analysis of the capabilities of unmanned aerial vehicle (UAV) photogrammetry to obtain point clouds from areas with a near-vertical inclination was carried out. For this purpose, 18 different combinations were proposed, varying the number of ground control points (GCPs), the adequacy (or not) of the distribution of GCPs, and the orientation of the photographs (nadir and oblique). The results have shown that under certain conditions, the accuracy achieved was similar to those obtained by a terrestrial laser scanner (TLS). For this reason, it is necessary to increase the number of GCPs as much as possible in order to cover a whole study area. In the event that this is not possible, the inclusion of oblique photography ostensibly improves results; therefore, it is always advisable since they also improve the geometric descriptions of break lines or sudden changes in slope. In this sense, UAVs seem to be a more economic substitute compared to TLS for vertical wall surveying. 2020-07-21T07:00:41Z 2020-07-21T07:00:41Z 2020-07-10 info:eu-repo/semantics/article 2072-4292 http://hdl.handle.net/10835/8348 en https://www.mdpi.com/2072-4292/12/14/2221 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess MDPI |
| spellingShingle | UAV photogrammetry 3D-model surveying vertical wall Martínez Carricondo, Patricio Agüera Vega, Francisco Carvajal Ramírez, Fernando Use of UAV-Photogrammetry for Quasi-Vertical Wall Surveying |
| title | Use of UAV-Photogrammetry for Quasi-Vertical Wall Surveying |
| title_full | Use of UAV-Photogrammetry for Quasi-Vertical Wall Surveying |
| title_fullStr | Use of UAV-Photogrammetry for Quasi-Vertical Wall Surveying |
| title_full_unstemmed | Use of UAV-Photogrammetry for Quasi-Vertical Wall Surveying |
| title_short | Use of UAV-Photogrammetry for Quasi-Vertical Wall Surveying |
| title_sort | use of uav-photogrammetry for quasi-vertical wall surveying |
| topic | UAV photogrammetry 3D-model surveying vertical wall |
| url | http://hdl.handle.net/10835/8348 |
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