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Research and Application of Model Fusion Based on UAV Tilt Photography and Three-dimensional Laser Scanner

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DOI: 10.23977/CNCI2020093

Author(s)

Chuanli Kang, Kai Gu, Jinyu Lei, Jie Luo, Rui Cai and Xiaoqi Zhou

Corresponding Author

Chuanli Kang

ABSTRACT

In order to further study the method of model fusion, this paper uses UAV tilt photography technology and three-dimensional laser scanning technology to obtain the ground feature (building) information from the air and the ground respectively, and then used for model reconstruction. Firstly, the top and elevation point clouds of the building are generated by the UAV tilt photography technology and the point clouds of the building's elevation and bottom are acquired by the 3D laser scanner. After filtering out the noise correlation processing of the point clouds, the point clouds of the two are accurately integrated into a more complete building point cloud. Through the 3D reconstruction technology, the fusion point cloud is constructed into a building white model and then the texture map obtained by tilt photography of UAV is combined with the building white model. Finally, the reconstructed building model is obtained. This modeling method can make full use of 3D laser point cloud and UAV tilt photography image and make up for the limitation of 3D modeling of a single data source, which realizes more comprehensive and accurate reconstruction. Meanwhile, it can provide ideas for the research and application of model fusion by combining different tilt photography methods.

KEYWORDS

Three-dimensional laser scanner; model fusion based; UAV tilt photography

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