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Feature extraction method of rock landslide damage boundary

A feature extraction and rock quality technology, which is applied to the details of 3D image data, climate sustainability, instruments, etc., can solve the problem of high risk of full-coverage manual investigation, heavy feature workload, and difficulties for workers in blind areas of slopes to reach And other issues

Active Publication Date: 2021-09-07
CHENGDU UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a method for feature extraction of rock landslide damage boundaries, which solves the problem of manual extraction of rock landslide damage boundaries with a large workload, difficulty for workers in the blind area of ​​the slope, and full coverage. Manual troubleshooting of high-risk issues

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  • Feature extraction method of rock landslide damage boundary
  • Feature extraction method of rock landslide damage boundary
  • Feature extraction method of rock landslide damage boundary

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[0092] Such as figure 1 As shown, the present invention provides a kind of feature extraction method of rock landslide failure boundary, and its implementation method is as follows:

[0093] S1. Select different parts of the rock landslide to arrange artificial measuring points, and set several 3D laser scanning stations in the slide area, and build a 3D point cloud model. The implementation method is as follows:

[0094] S101, arrange m artificial measuring points on the rock landslide boundary, and arrange 3m artificial measuring points in the rock landslide affected area;

[0095] S102, setting multiple three-dimensional laser scanning stations in the rock landslide area;

[0096] S103. Establish a 3D point cloud model by splicing data and calibrating the coordinates of the 3D laser scanning site.

[0097] In this embodiment, different parts of the landslide are selected to arrange artificial measuring points, wherein the number of points on the landslide boundary is m, a...

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Abstract

The invention provides a feature extraction method of a rock landslide damage boundary , and belongs to the technical field of rock landslide. The method comprises the following steps: acquiring landslide boundary and influence area data by adopting a ground three-dimensional laser scanner, calculating a normal vector of a structural surface through a Hough algorithm to determine a spatial position of the structural surface, performing HIS color reconstruction on the captured structural surface, and determining the group number of the structural surface according to different color types; on the basis of a color point cloud model, using a density band noise spatial clustering (DBSCAN) algorithm for carrying out clustering analysis on a structural surface, so that structural surface parameters are obtained, and landslide damage boundary features are further extracted. Compared with a traditional method, the method is more intelligent, wide in measuring point area coverage, more representative and short in data processing period. The rock landslide damage boundary feature extraction has great research value in landslide boundary cause analysis.

Description

technical field [0001] The invention belongs to the technical field of rock landslides, in particular to a feature extraction method of rock landslide failure boundaries. Background technique [0002] The boundary of the landslide is determined manually on the spot according to the traditional method. Considering the safety and the actual workload may be relatively large, the manual method has higher requirements on the topographical conditions of the landslide. It is specifically reflected in the high and steep landslides, especially the rocky landslides on both sides of the boundary and the trailing edge, which often cause great obstacles to field investigators due to their dangerous terrain; at the same time, in the data processing work, manual data needs to go through multiple processes such as recording and input. The previous steps will increase the workload. In order to solve this kind of problem, a set of feature extraction method of rock landslide failure boundary ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/05G06T17/20G06K9/62
CPCG06T17/05G06T17/20G06T2200/04G06F18/2321Y02A10/23
Inventor 崔圣华杨晴雯裴向军何智浩
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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