Research on a true digital orthophoto map generation technology based on 3D point cloud geometry

ShuHan Du; Fengjie Zheng; Xiangning Chen; Haoyue Wang; Decheng Wang; Ningbo Guo; Hui Yi

doi:10.1117/12.2626555

20 December 2021 Research on a true digital orthophoto map generation technology based on 3D point cloud geometry

ShuHan Du, Fengjie Zheng, Xiangning Chen, Haoyue Wang, Decheng Wang, Ningbo Guo, Hui Yi

Proceedings Volume 12155, International Conference on Computer Vision, Application, and Design (CVAD 2021); 1215516 (2021) https://doi.org/10.1117/12.2626555
Event: International Conference on Computer Vision, Application, and Design (CVAD 2021), 2021, Sanya, China

Abstract

The traditional method of making true digital orthophoto map is orthophoto correction using digital surface model. Tall buildings will be blocked due to the displacement of image points in orthophoto correction. This paper studies the generation method of true digital orthophoto map based on 3D point cloud geometry, and completes the production of true digital orthophoto map through point cloud registration, absolute orientation, equal interval sampling, vertical projection and texture mapping. This paper studies the equal interval sampling method and vertical projection method in this process, which reduces the time of traditional methods in masking detection and repair, it has high automation.

Citation Download Citation

ShuHan Du, Fengjie Zheng, Xiangning Chen, Haoyue Wang, Decheng Wang, Ningbo Guo, and Hui Yi "Research on a true digital orthophoto map generation technology based on 3D point cloud geometry", Proc. SPIE 12155, International Conference on Computer Vision, Application, and Design (CVAD 2021), 1215516 (20 December 2021); https://doi.org/10.1117/12.2626555

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KEYWORDS

Clouds

3D modeling

Data modeling

3D image processing

Orthophoto maps

Satellites

Photography

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