HEIGHT GRADIENT APPROACH FOR OCCLUSION DETECTION IN UAV IMAGERY
The use of Unmanned Aerial Vehicle (UAV) significantly increased in the last years. It is used for several different applications, such as mapping, publicity, security, natural disasters assistance, environmental monitoring, 3D building model generation, cadastral survey, etc. The imagery obtained b...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2015-08-01
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| Series: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| Online Access: | http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-1-W4/263/2015/isprsarchives-XL-1-W4-263-2015.pdf |
| _version_ | 1828197205331148800 |
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| author | H. C. Oliveira A. F. Habib A. P. Dal Poz M. Galo |
| author_facet | H. C. Oliveira A. F. Habib A. P. Dal Poz M. Galo |
| author_sort | H. C. Oliveira |
| collection | DOAJ |
| description | The use of Unmanned Aerial Vehicle (UAV) significantly increased in the last years. It is used for several different applications,
such as mapping, publicity, security, natural disasters assistance, environmental monitoring, 3D building model generation,
cadastral survey, etc. The imagery obtained by this kind of system has a great potential. To use these images in true orthophoto
generation projects related to urban scenes or areas where buildings are present, it is important to consider the occlusion caused by
surface height variation, platform attitude, and perspective projection. Occlusions in UAV imagery are usually larger than in
conventional airborne dataset due to the low-altitude and excessive change in orientation due to the low-weight and wind effects
during the flight mission. Therefore, this paper presents a method for occlusion detection together with some obtained results for
images acquired by a UAV platform. The proposed method shows potential in occlusion detection and true orthophoto generation. |
| first_indexed | 2024-04-12T10:15:46Z |
| format | Article |
| id | doaj.art-31f5d0ed1cbd40119ffbb18de78362f9 |
| institution | Directory Open Access Journal |
| issn | 1682-1750 2194-9034 |
| language | English |
| last_indexed | 2024-04-12T10:15:46Z |
| publishDate | 2015-08-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| spelling | doaj.art-31f5d0ed1cbd40119ffbb18de78362f92022-12-22T03:37:13ZengCopernicus PublicationsThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences1682-17502194-90342015-08-01XL-1-W426326810.5194/isprsarchives-XL-1-W4-263-2015HEIGHT GRADIENT APPROACH FOR OCCLUSION DETECTION IN UAV IMAGERYH. C. Oliveira0A. F. Habib1A. P. Dal Poz2M. Galo3São Paulo State University, Graduate Program in Cartographic Sciences, Presidente Prudente, BrazilPurdue University, Lyles School of Civil Engineering, West Lafayette, Indiana, USASão Paulo State University, Dept. of Cartography, Presidente Prudente, BrazilSão Paulo State University, Dept. of Cartography, Presidente Prudente, BrazilThe use of Unmanned Aerial Vehicle (UAV) significantly increased in the last years. It is used for several different applications, such as mapping, publicity, security, natural disasters assistance, environmental monitoring, 3D building model generation, cadastral survey, etc. The imagery obtained by this kind of system has a great potential. To use these images in true orthophoto generation projects related to urban scenes or areas where buildings are present, it is important to consider the occlusion caused by surface height variation, platform attitude, and perspective projection. Occlusions in UAV imagery are usually larger than in conventional airborne dataset due to the low-altitude and excessive change in orientation due to the low-weight and wind effects during the flight mission. Therefore, this paper presents a method for occlusion detection together with some obtained results for images acquired by a UAV platform. The proposed method shows potential in occlusion detection and true orthophoto generation.http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-1-W4/263/2015/isprsarchives-XL-1-W4-263-2015.pdf |
| spellingShingle | H. C. Oliveira A. F. Habib A. P. Dal Poz M. Galo HEIGHT GRADIENT APPROACH FOR OCCLUSION DETECTION IN UAV IMAGERY The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| title | HEIGHT GRADIENT APPROACH FOR OCCLUSION DETECTION IN UAV IMAGERY |
| title_full | HEIGHT GRADIENT APPROACH FOR OCCLUSION DETECTION IN UAV IMAGERY |
| title_fullStr | HEIGHT GRADIENT APPROACH FOR OCCLUSION DETECTION IN UAV IMAGERY |
| title_full_unstemmed | HEIGHT GRADIENT APPROACH FOR OCCLUSION DETECTION IN UAV IMAGERY |
| title_short | HEIGHT GRADIENT APPROACH FOR OCCLUSION DETECTION IN UAV IMAGERY |
| title_sort | height gradient approach for occlusion detection in uav imagery |
| url | http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-1-W4/263/2015/isprsarchives-XL-1-W4-263-2015.pdf |
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