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http://dx.doi.org/10.7780/kjrs.2019.35.6.1.8

Automatic Building Modeling Method Using Planar Analysis of Point Clouds from Unmanned Aerial Vehicles  

Kim, Han-gyeol (Image Engineering Research Center, 3DLabs Co., Ltd.)
Hwang, YunHyuk (Image Engineering Research Center, 3DLabs Co., Ltd.)
Rhee, Sooahm (Image Engineering Research Center, 3DLabs Co., Ltd.)
Publication Information
Korean Journal of Remote Sensing / v.35, no.6_1, 2019 , pp. 973-985 More about this Journal
Abstract
In this paper, we propose a method to separate the ground and building areas and generate building models automatically through planarity analysis using UAV (Unmanned Aerial Vehicle) based point cloud. In this study, proposed method includes five steps. In the first step, the planes of the point cloud were extracted by analyzing the planarity of the input point cloud. In the second step, the extracted planes were analyzed to find a plane corresponding to the ground surface. Then, the points corresponding to the plane were removed from the point cloud. In the third step, we generate ortho-projected image from the point cloud ground surface removed. In the fourth step, the outline of each object was extracted from the ortho-projected image. Then, the non-building area was removed using the area, area / length ratio. Finally, the building's outer points were constructed using the building's ground height and the building's height. Then, 3D building models were created. In order to verify the proposed method, we used point clouds made using the UAV images. Through experiments, we confirmed that the 3D models of the building were generated automatically.
Keywords
UAV Photogrammetry; Point cloud; Building model;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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