Map production method and device based on laser point cloud

Abstract

The invention discloses a map production method and device based on laser point cloud, and relates to the technical field of computers. A specific embodiment of the method comprises: collecting laserpoint cloud of a target area, and performing semantic analysis on the laser point cloud to determine a category attribute of each point cloud point in the laser point cloud and a serial number of an instance to which the point cloud point belongs; combining the point cloud points with the same category attribute under the same instance number to obtain a point cloud cluster, and determining the shape of the point cloud cluster according to the corresponding relationship between the category attribute and the shape; and determining a vectorization rule corresponding to the shape to perform vectorization processing on the point cloud cluster to obtain a vectorization map of the target area. The laser point cloud acquired in the embodiment has the advantages of multiple angles and multiple positions, the integrity and consistency of an object can be better kept compared with a perspective drawing, and the condition that a small part is shielded can be avoided; and three-dimensional vectorization is carried out on point clouds of different shapes, element types can be enriched, and generation of a three-dimensional high-precision map is completed.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a laser point cloud-based map production method and device. Background technique [0002] A high-precision map is a map used to guide unmanned vehicles and robot autonomous driving. Compared with ordinary electronic navigation maps, high-precision maps can provide more accurate (centimeter-level) locations, including richer (road lines, curbs, The road factor information of barriers, etc.) is an indispensable part of automatic driving technology. [0003] A 3D high-precision map is a map drawn in a three-dimensional space. Compared with a two-dimensional high-precision map, its advantages lie in: [0004] 1) Rich 3D information improves the accuracy of autonomous driving decisions, such as guiding vehicles traveling in different directions in the overpass area; [0005] 2) The application is more extensive. In addition to assisting vehicle navigation, it can also be used to b...

AI Technical Summary

Problems solved by technology

[0014] In view of this, the embodiments of the present invention provide a laser point cloud-based map production method and device, which can at least solve the shortcomings of low accuracy, weak robustness, and single types of extracted elements in the prior art for 3D high-precision map production.

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