Construction method and device of pavement three-dimensional model, computer equipment and storage medium

Abstract

The invention provides a pavement three-dimensional model construction method and device, computer equipment and a readable storage medium. The method comprises steps of a two-dimensional drawing related to a target road being acquired; extracting a center line and a plurality of geometric polygons corresponding to the target road, wherein the geometric polygons are closed region blocks formed byany one or more of motor vehicle lanes, sidewalks and green belts in the road plan; extracting a plurality of stake mark point elevations on the center line, and generating a three-dimensional centerline model according to the center line and the stake mark point elevations; according to the position relationship between the three-dimensional center line model and each geometric polygon, determining feature points and elevations thereof in each geometric polygon; utilizing an interpolation method to calculate elevations of other end points except the feature points in each geometric polygon;and generating a pavement three-dimensional model corresponding to the target road according to the feature points with the determined elevations and the other end points.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a construction method, device, computer equipment and storage medium of a road surface three-dimensional model. Background technique [0002] The existing pavement model construction methods include VR panorama construction method, CGA modeling and other methods. The model obtained by the VR panorama construction method is a three-dimensional model obtained based on image stitching, which is mainly used for display and viewing of the actual presentation style renderings. This modeling method does not have a geometric topology description, so it cannot participate in the calculation of engineering quantities such as volume and surface area, and at the same time, it cannot obtain information such as collision detection descriptions with other components. CGA modeling requires the preparation of road network basemap data, terrain data, digital orthophotos, texture images a...

AI Technical Summary

Problems solved by technology

[0004] Although the above three-dimensional modeling method simplifies the operation steps of three-dimensional modeling and omits unnecessary data entry, it is still a very time-consuming task to convert two-dimensional drawings into mathematically described data required by CGA. The interactive steps directly convert the designed two-dimensional drawings into three-dimensional models, and it is an inevitable development trend to quickly complete the modeling of complex shapes

Images