Using the Ground Lidar and Unmanned Aerial Vehicle Technology to Produce the Ortho-elevation Orthophoto Map of Large Ancient Tower
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Abstract
In this paper, Baochu tower as an example, to explore the use of ground-based lidar and unmanned aerial technology to produce large-scale tower orthophotos orthophoto map technical process and key issues. Engineering practice proves that, based on the point cloud, the large-scale tower tower orthophoto map can effectively eliminate the projection error brought by the traditional photos and meet the engineering requirements. At the same time, the UAV technology is used to collect the ancient tower facade texture, Effectively overcome the scaffolding occlusion and other issues, not only greatly reduces the data processing time within the industry, but also to ensure the greatest degree of authenticity of the ancient tower texture for the next step pagoda structure safety assessment work provides first-hand real information.
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