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Ultra-large ground three-dimensional laser scanning original point cloud space regularization method

A three-dimensional laser and original point technology, which is applied in the re-radiation of electromagnetic waves, the use of re-radiation, and measuring devices, can solve the problem that ordinary computers cannot directly read and process super-large point clouds, so as to save data processing time and reduce data. volume effect

Inactive Publication Date: 2018-11-02
SHANDONG UNIV OF TECH
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the above-mentioned super large point cloud can hardly be directly read and processed by ordinary computers

Method used

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  • Ultra-large ground three-dimensional laser scanning original point cloud space regularization method
  • Ultra-large ground three-dimensional laser scanning original point cloud space regularization method
  • Ultra-large ground three-dimensional laser scanning original point cloud space regularization method

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Embodiment Construction

[0040] Below will combine the appended in the embodiment of the present invention Figure 1~3 , clearly and completely describe the technical solutions in the embodiments of the present invention, obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0041] The data used in this example comes from the point cloud scanned by the rockery of Shandong University of Technology, and the scanning instrument used in the experiment is RieglVZ-1000. Computer configuration: CUP i5 3470 3.20GHz, memory 4GB, hard disk 500GB. The cloud data of this site is about 220 million points, and the software developed by IDL language is used for data processing, and the storage format of point cloud data files is binary.

[0042] The sp...

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Abstract

The invention provides an ultra-large ground three-dimensional laser scanning original point cloud space regularization method which comprises the steps of 1), using a scanning station as a sphere core, dividing ultra-large ground three-dimensional laser scanning original point cloud into a plurality of stratifications of concentric spheres according to density; and 2), establishing a data management system for the point cloud after sphere stratification dividing, and performing high-density area point cloud diluting. The method can greatly improve speed in ultra-large ground three-dimensionallaser scanning (TLS) original point cloud space regularization.

Description

technical field [0001] The invention relates to a space regularization method for an original point cloud of super-large ground three-dimensional laser scanning, which belongs to the field of engineering measurement. Background technique [0002] The point cloud is divided into several grids equidistantly according to the spatial resolution, and the point closest to the center is reserved in each grid. The process is called spatial regularization. [0003] For an ordinary computer with CUP i5 3470 3.20GHz, memory 4GB, and hard disk 500GB, point clouds can be divided into small point cloud, medium point cloud, large point cloud and super large point cloud according to the memory and computer processing power, and the point number of small point cloud is less than 20 million, the number of midpoint cloud points is 20 million to 50 million, the number of large point cloud points is 50 million to 100 million, and the number of super large point cloud points is greater than 100 m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/89
CPCG01S17/89
Inventor 刘科利王建赵雪莹姚吉利赵猛田鹏艳杨承昆
Owner SHANDONG UNIV OF TECH
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