An octree-based dynamic resampling method for efficient and lightweight visualization of power transmission line point clouds

Jing Hu; Lin Yin; Wenbin Wang; Fan Li; Ruizhe Hu

doi:10.1117/12.3033993

16 October 2024 An octree-based dynamic resampling method for efficient and lightweight visualization of power transmission line point clouds

Jing Hu, Lin Yin, Wenbin Wang, Fan Li, Ruizhe Hu

Author Affiliations +

Proceedings Volume 13291, Ninth International Symposium on Advances in Electrical, Electronics, and Computer Engineering (ISAEECE 2024); 132911S (2024) https://doi.org/10.1117/12.3033993
Event: Ninth International Symposium on Advances in Electrical, Electronics, and Computer Engineering (ISAEECE 2024), 2024, Changchun, China

Abstract

Point clouds have played an important role in power transmission inspection. However, the huge data volume hinders the popularization and application of the technology. In this paper, the segmentation and visualization of point cloud data associated with power transmission lines have been addressed through an innovative approach, characterized by the integration of octree-based spatial partitioning and dynamic resampling. Initiated with the construction of an octree hierarchy, the point cloud data undergo segmentation, while a top-down strategy is concurrently enacted for the purpose of dynamic resampling, optimizing the efficiency of octree index construction. This is followed by the deployment of the octree index to selectively load point cloud data specific to individual transmission towers, culminating in a lightweight representation of the transmission line point clouds. The results derived from the research underscore the capability of the proposed methodology to substantially expedite the loading speed of transmission line point clouds, thereby offering a robust framework for the optimization of flight route planning during autonomous inspections of transmission lines.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Jing Hu, Lin Yin, Wenbin Wang, Fan Li, and Ruizhe Hu "An octree-based dynamic resampling method for efficient and lightweight visualization of power transmission line point clouds", Proc. SPIE 13291, Ninth International Symposium on Advances in Electrical, Electronics, and Computer Engineering (ISAEECE 2024), 132911S (16 October 2024); https://doi.org/10.1117/12.3033993

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