HPC Solutions for ALS Point Cloud Processing in Pathfinding and Powerline Detection and Characterization

This thesis addresses the processing of LiDAR point clouds using high-performance computing techniques. By employing efficient data structures and the shared-memory parallelization paradigm, two methods have been implemented for point cloud analysis. First, a path planning algorithm is used to find...

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Bibliographic Details
Author: Yermo, Miguel
Format: Doctoral thesis
Publication date:2024
Country:España
Institution:Universidad de Santiago de Compostela (USC)
Repository:Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
Language:English
OAI Identifier:oai:minerva.usc.gal:10347/34947
Online Access:http://hdl.handle.net/10347/34947
Access Level:Open access
Keyword:330406 Arquitectura de ordenadores
Description
Summary:This thesis addresses the processing of LiDAR point clouds using high-performance computing techniques. By employing efficient data structures and the shared-memory parallelization paradigm, two methods have been implemented for point cloud analysis. First, a path planning algorithm is used to find the route between any two points within an airborne LiDAR point cloud, considering terrain features such as trafficability, slope, roughness, presence of vegetation, and roads. It is guaranteed that the found route is optimal in terms of cost. Second, the problem of detecting and characterizing powerlines in general-purpose airborne LiDAR point clouds has been tackled. The method can detect multiple powerlines in a given scene with a precision of 97.2%, and it can model the conductors with a mean error of 0.14 meters.