Laser & Optoelectronics Progress, Volume. 59, Issue 12, 1200002(2022)
From Global Laser Point Cloud Acquisition to 3D Digital Geospatial Framework: The Advanced Road of Global Accurate Mapping
Laser point cloud data has the characteristics of high measurement accuracy, fast processing efficiency, strong three-dimensional (3D) vision, and wide application fields. It will be one of the core data sets of the new generation national global topographic database. The rapid advancement of spaceborne laser earth observation technology allows the collection of global 3D point cloud data, as well as a quick and efficient technical method for constructing a high-precision 3D digital geospatial information framework. Herein, we first examined the current state and the issues of global high-precision 3D mapping. Further, the rapid construction setup of 3D digital earth spatial information framework based on global laser point cloud was proposed, mainly including the technical processes of spaceborne photon laser point cloud data detection, processing, and application. Finally, the characteristics and benefits of the rapid construction of 3D digital earth framework, based on point cloud, as well as the main problem and future development directions that must be addressed were discussed.
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Yong Fang, Hui Gong, Li Zhang, Haiyan Hu. From Global Laser Point Cloud Acquisition to 3D Digital Geospatial Framework: The Advanced Road of Global Accurate Mapping[J]. Laser & Optoelectronics Progress, 2022, 59(12): 1200002
Category: Reviews
Received: Nov. 15, 2021
Accepted: Dec. 27, 2021
Published Online: May. 23, 2022
The Author Email: Fang Yong (yong.fang@vip.sina.com)