Results 1 to 10 of about 235,860 (270)

POINT CLOUD SLICING-BASED EXTRACTION OF INDOOR COMPONENTS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Indoor point cloud data is easy to obtain and contains a large amount of data, but there is no connectivity, no structural attributes, and no semantic information between point clouds. It is very difficult to extract interior components.
J. Zhao, J. Zhao, J. Zhao, Y. Cui, Y. Cui, X. Niu, X. Niu, X. Wang, X. Wang, Y. Zhao, M. Guo, M. Guo, R. Zhang, R. Zhang   +13 more
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Power-Line Extraction Method for UAV Point Cloud Based on Region Growing Algorithm

南方能源建设, 2023
[Introduction] Since the power line has the characteristics of long transmission distance and a complex spatial environment, the UAV LiDAR point cloud technology can completely and efficiently obtain the geometric information of the power line and its ...
Xingyi LI, Wei WU, Zhiyao ZHAO
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Panoramic rendering-based polygon extraction from indoor mobile LiDAR data [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
In this paper, we propose a method for panoramic point-cloud rendering-based polygon extraction from indoor mobile LiDAR data. Our aim was to improve region-based point-cloud clustering in modeling after point-cloud registration.
M. Nakagawa, K. Kataoka, T. Yamamoto, M. Shiozaki, T. Ohhashi   +4 more
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Semantic Segmentation Model for Transmission Tower Point Cloud Based on Improved PointNet++

Zhongguo dianli, 2023
Aiming at the existing problem that the point cloud extraction accuracy of transmission lines is not high and cannot meet the needs of autonomous and refined inspection by unmanned aerial vehicles, an improved PointNet++ semantic segmentation method for ...
Zheng HUANG, Xu GU, Hongxing WANG, Xingwei ZHANG, Xin ZHANG   +4 more
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EFFECT OF KEYFRAMES EXTRACTION FROM THERMAL INFRARED VIDEO STREAM TO GENERATE DENSE POINT CLOUD OF THE BUILDING'S FACADE [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Keyframes extraction is required and effective for the 3D reconstruction of objects from a thermal video sequence to increase geometric accuracy, reduce the volume of aerial triangulation calculations, and generate the dense point cloud. The primary goal
S. Motayyeb, F. Samadzadegan, F. Dadrass Javan, F. Dadrass Javan, H. R. Hosseinpour   +4 more
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TOPOLOGICAL 3D MODELING USING INDOOR MOBILE LIDAR DATA [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
We focus on a region-based point clustering to extract a polygon from a massive point cloud. In the region-based clustering, RANSAC is a suitable approach for estimating surfaces. However, local workspace selection is required to improve a performance in
M. Nakagawa, T. Yamamoto, S. Tanaka, M. Shiozaki, T. Ohhashi   +4 more
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SS-IPLE: Semantic Segmentation of Electric Power Corridor Scene and Individual Power Line Extraction From UAV-Based Lidar Point Cloud

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Key objects’ semantic segmentation and power line extraction from the electric power corridor point cloud are critical steps in power line inspection.
Xiuning Liu, Feng Shuang, Yong Li, Liqiang Zhang, Xingwen Huang, Jianchuang Qin   +5 more
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Point Cloud Data Processing Optimization in Spectral and Spatial Dimensions Based on Multispectral Lidar for Urban Single-Wood Extraction

ISPRS International Journal of Geo-Information, 2023
Lidar can effectively obtain three-dimensional information on ground objects. In recent years, lidar has developed rapidly from single-wavelength to multispectral hyperspectral imaging.
Shuo Shi, Xingtao Tang, Bowen Chen, Biwu Chen, Qian Xu, Sifu Bi, Wei Gong   +6 more
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Secondary Extraction Algorithm for Scattered Point Cloud Surface Boundary [PDF]

Jisuanji gongcheng, 2017
To overcome the defects of large amounts of calculation and long duration time consuming and calculation amount of current point cloud surface boundary extraction algorithms,a point cloud surface secondary boundary extraction algorithm is put forward ...
TONG Lijing,ZHENG Junchao
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AUTOMATIC EXTRACTION OF POWER LINES FROM UAV LIDAR POINT CLOUDS USING A NOVEL SPATIAL FEATURE [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
UAV LiDAR systems have unique advantage in acquiring 3D geo-information of the targets and the expenses are very reasonable; therefore, they are capable of security inspection of high-voltage power lines.
M. Zhou, K. Y. Li, K. Y. Li, J. H. Wang, C. R. Li, G. E. Teng, L. Ma, H. H. Wu, W. Li, H. J. Zhang, J. Y. Chen, L. S. Chen, L. S. Chen   +12 more
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