Indoor and outdoor integrated point cloud construction technology of buildings based on space ground fusion

doi:10.13474/j.cnki.11-2246.2023.0248

Abstract

Abstract: Indoor and outdoor integrated building model is the basic data of smart city management. Tilt photography and ground 3D laser scanning are the two main ways to obtain building model data. In view of the problem that a single data acquisition method is restricted by many factors and it is difficult to obtain complete indoor and outdoor 3D data of buildings, this paper puts forward the technical route of the integration of tilt dense matching point cloud and ground laser scanning point cloud. This route uses ground laser scanning to obtain the building facade and indoor point cloud, and tilt photography to obtain the building top point cloud. The two combine to build a complete indoor and outdoor integrated building point cloud. Taking the Gaomi clay sculpture exhibition hall as the research object, this paper tests the feasibility of the above technical route and verifies the fusion accuracy, which can provide reference for similar projects.

Key words: 3D laser scanning, tilt aerial photography, point cloud splicing and fusion, indoor and outdoor integration

CLC Number:

P237

YU Qian, LING Xiaochun, ZHAO Mingjin, WEI Wei, LIU Yang. Indoor and outdoor integrated point cloud construction technology of buildings based on space ground fusion[J]. Bulletin of Surveying and Mapping, 2023, 0(8): 146-150.

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