Video map: A realtime orthographic geo-image considering DEM and semantic information.
Aiming at the problem that it is difficult to accurately calibrate massive Pan-Tilt-Zoom Camera (PTZ) cameras on telecommunication tower and the visualization effect of orthographic geo-image is poor, this paper proposes a new method of realtime orthographic geo-image generating, which is considerin...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2025-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0323669 |
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| author | Xingguo Zhang Xiaodi Li Shuai Ren Mohan Liu Sen Yang |
| author_facet | Xingguo Zhang Xiaodi Li Shuai Ren Mohan Liu Sen Yang |
| author_sort | Xingguo Zhang |
| collection | DOAJ |
| description | Aiming at the problem that it is difficult to accurately calibrate massive Pan-Tilt-Zoom Camera (PTZ) cameras on telecommunication tower and the visualization effect of orthographic geo-image is poor, this paper proposes a new method of realtime orthographic geo-image generating, which is considering Digital Elevation Model (DEM) and semantic information (ROGI-DS). First, through integrating tower cameras with 3D GIS, a camera calibration method based on view fitting (3D GIS-GeoC) is designed. Then, using the trained semantic segmentation model (TCSM), the sky area can automatically be identified and removed. Finally, based on the results of camera calibration and viewshed analysis, and the orthographic geo-image are generated. The results show that: (1) 3D GIS-GeoC method outperforms the traditional Perspective-n-Point (PnP) algorithm;(2) The tower camera semantic segmentation model (TCSM) achieves an accuracy of 96.7%; (3) ROGI-DS method improves the accuracy and visualization of orthographic geo-image under different terrain constraints, and can be used real-time monitoring of natural resources and emergency reliefs. |
| format | Article |
| id | doaj-art-48bff221cd364461a7f35ef42433bb4f |
| institution | DOAJ |
| issn | 1932-6203 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-48bff221cd364461a7f35ef42433bb4f2025-08-20T03:08:21ZengPublic Library of Science (PLoS)PLoS ONE1932-62032025-01-01205e032366910.1371/journal.pone.0323669Video map: A realtime orthographic geo-image considering DEM and semantic information.Xingguo ZhangXiaodi LiShuai RenMohan LiuSen YangAiming at the problem that it is difficult to accurately calibrate massive Pan-Tilt-Zoom Camera (PTZ) cameras on telecommunication tower and the visualization effect of orthographic geo-image is poor, this paper proposes a new method of realtime orthographic geo-image generating, which is considering Digital Elevation Model (DEM) and semantic information (ROGI-DS). First, through integrating tower cameras with 3D GIS, a camera calibration method based on view fitting (3D GIS-GeoC) is designed. Then, using the trained semantic segmentation model (TCSM), the sky area can automatically be identified and removed. Finally, based on the results of camera calibration and viewshed analysis, and the orthographic geo-image are generated. The results show that: (1) 3D GIS-GeoC method outperforms the traditional Perspective-n-Point (PnP) algorithm;(2) The tower camera semantic segmentation model (TCSM) achieves an accuracy of 96.7%; (3) ROGI-DS method improves the accuracy and visualization of orthographic geo-image under different terrain constraints, and can be used real-time monitoring of natural resources and emergency reliefs.https://doi.org/10.1371/journal.pone.0323669 |
| spellingShingle | Xingguo Zhang Xiaodi Li Shuai Ren Mohan Liu Sen Yang Video map: A realtime orthographic geo-image considering DEM and semantic information. PLoS ONE |
| title | Video map: A realtime orthographic geo-image considering DEM and semantic information. |
| title_full | Video map: A realtime orthographic geo-image considering DEM and semantic information. |
| title_fullStr | Video map: A realtime orthographic geo-image considering DEM and semantic information. |
| title_full_unstemmed | Video map: A realtime orthographic geo-image considering DEM and semantic information. |
| title_short | Video map: A realtime orthographic geo-image considering DEM and semantic information. |
| title_sort | video map a realtime orthographic geo image considering dem and semantic information |
| url | https://doi.org/10.1371/journal.pone.0323669 |
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