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Three-dimensional lane model generation method and system

A technology for model generation and lanes, applied in 3D modeling, image data processing, instruments, etc., to achieve the effect of saving collection work

Active Publication Date: 2020-04-21
FOSHAN UNIVERSITY
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Problems solved by technology

[0004] The present invention provides a method and system for generating a three-dimensional lane model to solve one or more technical problems existing in the prior art, and at least provide a beneficial choice or create conditions

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  • Three-dimensional lane model generation method and system
  • Three-dimensional lane model generation method and system

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[0045] The concept, specific structure and technical effects of the present disclosure will be clearly and completely described below in conjunction with the embodiments and drawings, so as to fully understand the purpose, scheme and effect of the present disclosure. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0046] refer to figure 1 ,Such as figure 1 Shown is a method for generating a 3D lane model, including the following steps:

[0047] Step S100, converting the lane layer from the latitude-longitude coordinate system into a projected coordinate system.

[0048] This step can be processed by tools such as ArcGIS or ArcMap, and the longitude-latitude coordinate system is converted into a projected coordinate system to facilitate subsequent calculations in the projected coordinate system. Coordinate transformation should adopt the local coordinate sys...

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Abstract

The invention relates to the technical field of three-dimensional road modeling, in particular to a three-dimensional lane model generation method and system, and the method comprises the steps: firstly enabling a lane layer to be converted into a projection coordinate system from a longitude and latitude coordinate system; generating a center line and an edge line of the lane under the projectioncoordinate system; dividing the lane into a plurality of continuous triangular patches, and constructing a two-dimensional coordinate of each triangular patch; constructing a three-dimensional coordinate of each triangular patch by taking DEM data of a lane as a height value of each triangular patch; sequentially connecting the triangular patches to obtain a three-dimensional lane model. According to the invention, the existing two-dimensional electronic map data can be fully utilized, and the three-dimensional model of the lane is automatically constructed, so that a large amount of acquisition work is saved, and the requirement of microscopic traffic simulation can be met.

Description

technical field [0001] The invention relates to the technical field of three-dimensional road modeling, in particular to a method and system for generating a three-dimensional lane model. Background technique [0002] The 3D traffic road network model and system is an important technology in the route navigation system and intelligent traffic integrated command and dispatch system. For complex intersections and multi-layer interchanges, a 3D road network is required to clearly express the spatial connection relationship of the roads, and it is possible to realize Road network analysis and calculation. The current general practice is to use 3D modeling software (such as: 3DMax, Maya, etc.) to carry out modeling applications according to the geometric dimensions of the road. The disadvantage of this method is that the workload is large. In the existing technology, there are also methods for automatically constructing a 3D road network model, but these methods use road section...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00
CPCG06T17/00
Inventor 聂佩林
Owner FOSHAN UNIVERSITY
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