Power line point cloud segmentation method and system based on random field and random forest

Abstract

The invention relates to a power line point cloud segmentation method and system, belongs to the electric power equipment exploration maintenance field and particularly relates to a power line point cloud segmentation method and system based on the random field and the random forest. According to the method, power line point cloud segmentation of the Markov random field and the random forest is integrated, through point cloud voxelization in combination with the Markov random field (MRF), linear segmentation is carried out, based on tower detection and identification, power line segmentation segments are extracted, so power line point cloud is extracted, automatic complete extraction of the power line is realized, and the high automation degree and relatively high extraction precision arerealized. The method is advantaged in that for the large-scale power line three-dimensional complex scene, a fast, accurate and fully-automated power line detection scheme is proposed, the method hasgeneral applicability to different power line channel scenes, and the method is of great significance for automatic extraction and reconstruction of the power line.

Description

technical field [0001] The invention relates to a power line point cloud segmentation method and system, belonging to the field of electric equipment survey and maintenance, in particular to a power line point cloud segmentation method and system based on random fields and random forests. Background technique [0002] Airborne LiDAR (Airborne Light Detection And Ranging, LiDAR) is an active aerial remote sensing earth observation system. It is an emerging technology first developed by Western countries and put into commercial application in the early 1990s. It integrates laser Ranging technology, global positioning system (GPS), inertial measurement technology and computer technology in one. This technology has produced a major breakthrough in the real-time acquisition of three-dimensional spatial information, and provides a new technical means for obtaining high-spatial-resolution geospatial information. [0003] Airborne lidar can quickly and directly obtain high-precisio...

AI Technical Summary

Problems solved by technology

[0006] The present invention mainly solves the technical problems in the prior art that the power line detection cost is expensive, takes a long time, the accuracy of the result is not high, and it is difficult to meet the actual production demand, and provides a power line point cloud segmentation method based on random field and random forest and system

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