Point cloud correction method and device of laser scanner and storage medium

Abstract

The invention discloses a point cloud correction method for a laser scanner, which is applied to the laser scanner and comprises the following steps: acquiring all scanning points in original laser scanning data of a three-dimensional laser scanner, and reading one scanning point as a scanning point to be processed; judging whether the to-be-processed scanning point is a first scanning point or not, and if yes, storing the to-be-processed scanning point in a temporary cache and then continuing to read the scanning point; if not, judging whether the to-be-processed scanning point and the previous to-be-processed scanning point belong to the same line segment or not; if yes, storing the to-be-processed scanning points in a temporary cache, and continuing to read the scanning points; if not, taking out all the scanning points in the temporary cache, and storing the scanning data of each scanning point locally after being filtered; meanwhile, creating a new temporary cache to store the to-be-processed scanning points in the new temporary cache, and then reading the scanning points until all the scanning points are read. The invention further provides a point cloud correction device of the laser scanner and a storage medium.

Description

technical field [0001] The present invention relates to a laser scanner, in particular to a point cloud correction method, device and storage medium for a laser scanner. Background technique [0002] At present, the 3D laser scanner calculates the distance between the scanning point and the laser emission position based on the time difference between emitting the laser and receiving the returning laser, combined with the speed of light. At the same time, it cooperates with the horizontal angle and pitch angle of the scanning point to decompose to obtain the relative coordinate value. . Due to the systematic error and random error caused by internal factors of the equipment or other external environments during scanning, error fluctuations will occur in the measured scanning points. In order to ensure the accuracy of subsequent calculations, it is generally necessary to process and optimize the point cloud data obtained by the original laser scanner through later software to...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiencies of the prior art, one of the objectives of the present invention is to provide a point cloud correction method for laser scanners, which can solve the high time and space complexity or difficulty in the filter processing of point cloud data in the prior art Large, time-consuming and other issues

[0007] The second object of the present invention is to provide a point cloud correction device for laser scanners, which can solve the problems of high time and space complexity, difficulty, and time-consuming filter processing of point cloud data in the prior art.

[0008] The third object of the present invention is to provide a storage medium, which can solve the problems of high time and space complexity, difficulty, and time-consuming filtering processing of point cloud data in the prior art.

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