Three-dimensional laser scanning space resolution reinforcing method

Abstract

The invention discloses a three-dimensional laser scanning space resolution reinforcing method. The three-dimensional laser scanning space resolution reinforcing method uses two stages of drive devices to run synchronously, and the scanning efficiency can be effectively improved; a scanning space is divided into meridian and parallel grids, and key points are set to effectively simplify the calculation and control process; for any measured space environment, a three-dimensional laser scanner is capable of regulating according to real-time environment, and the three-dimensional laser scanning space resolution is greatly reinforced through regulating gaps between scanning tracks and the scanning time of the adjacent key points.

Description

technical field [0001] The invention relates to the technical field of three-dimensional measurement, in particular to a method for enhancing spatial resolution of three-dimensional laser scanning. Background technique [0002] The three-dimensional laser scanning system uses laser ranging technology to obtain the measured distance value, and is driven by the two-stage drive device to complete the three-dimensional space scanning process. 3D laser scanning technology is a non-contact measurement technology, which has important application value in 3D modeling of buildings and detection of underground space. [0003] In the three-dimensional laser scanning method, the most commonly used is equiangular scanning. The two-axis drive device completes the entire scanning process according to the preset movement mode. The spatial angle of the scanning trajectory is equal, but due to the different distances between the measured object and the measurement module 1. The surface profi...

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Problems solved by technology

[0003] In the three-dimensional laser scanning method, the most commonly used is equiangular scanning. The two-axis drive device completes the entire scanning process according to the preset movement mode. The spatial angle of the scanning trajectory is equal, but due to the different distances between the measured object and the measurement module , The surface profile of the measured space is different, which eventually leads to a large difference in the spatial distance of the scanning trajectory, and the spatial resolution is low

[0004] There is also a 3D laser scanning method, which simply calculates the angle increment of the driving device and makes certain adjustments according to the distance measurement value, but lacks a complete scanning trajectory planning scheme and motion control model, and the effect is limited.

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