Three dimensional modeling method of stalactite integrated with multi-source measurement data

doi:10.13474/j.cnki.11-2246.2019.0042

Abstract

Abstract:

In the tourism development of karst caves, the traditional topographic map can not describe the details of the stalactite in the cave, and it is difficult to meet the requirements of the planning, design and construction in the development of the cave. Taking a three-dimensional reconstruction project of a medium-sized cave as an example, a three dimensional laser scanning data and a multi baseline close range photogrammetry data are put forward. Three dimensional reconstruction method of stalactite is supplemented by multi-source data fusion. First, the fusion and registration of multi-source data are completed. Secondly, the model reconstruction after the registration is carried out and a variety of different methods are used to carry out the cavitation area repair comparison experiment. The method of data fusion can effectively supplement the blind area of the three-dimensional laser scanning data in the narrow space area, and improve the fine degree of the 3D model. The development, protection, 3D reconstruction and visualization of karst caves are of some reference significance.

Key words: 3D laser scanning, close range photogrammetry, multi-source data fusion, point cloud registration, hollow repairing, 3D modeling

CLC Number:

P237

GUO Yu, XIA Yonghua, YANG Minglong. Three dimensional modeling method of stalactite integrated with multi-source measurement data[J]. 测绘通报, 2019, 0(2): 49-53.

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