CN-121997427-A - Method, device, equipment, medium and product for generating cable-stayed bridge model

CN121997427ACN 121997427 ACN121997427 ACN 121997427ACN-121997427-A

Abstract

The embodiment of the application provides a method, a device, equipment, a medium and a product for generating a cable-stayed bridge model. The method comprises the steps of obtaining lane-level data of the cable-stayed bridge, determining bridge parameters matched with the cable-stayed bridge in lane group information according to road attribute points in the lane-level data, representing the relative positions of elements in the cable-stayed bridge by the road attribute points, and generating a bridge model of the cable-stayed bridge according to the bridge parameters. The method is used for achieving the effect of improving the accuracy of the generated cable-stayed bridge model.

Inventors

LI ZHENHUA
LI YANLIANG
LI YANG
ZHOU CHUN
CHEN GUANZHEN

Assignees

北京四维图新科技股份有限公司

Dates

Publication Date: 20260508
Application Date: 20260126

Claims (10)

1. The method for generating the cable-stayed bridge model is characterized by comprising the following steps of: obtaining lane-level data of a cable-stayed bridge; Determining bridge parameters matched with the cable-stayed bridge in lane group information according to the road attribute points in the lane-level data, wherein the road attribute points represent the relative positions of elements in the cable-stayed bridge; and generating a bridge model of the cable-stayed bridge according to the bridge parameters.
2. The method according to claim 1, wherein the determining bridge parameters matched with the cable-stayed bridge in the lane group information according to the road attribute points in the lane-level data comprises: Screening the road information in the lane group information according to the uplink and downlink attribute points in the road attribute points, and determining the uplink and downlink roads in the lane group information; Determining a lane group in the uplink and downlink roads and position information of the lane group according to the lane group attribute points in the road attribute points; Determining a target lane group matched with the cable-stayed bridge in the lane group and target position information of the target lane group according to cable-stayed bridge attribute points in the road attribute points; And generating bridge parameters matched with the cable-stayed bridge according to the target position information of the target lane group.
3. The method according to claim 2, wherein the screening the road information in the lane group information according to the uplink and downlink attribute points in the road attribute points, and determining the uplink and downlink roads in the lane group information, includes: Screening the road information in the lane group information according to the uplink and downlink attribute points in the road attribute points, and determining the initial uplink and downlink roads in the lane group information; and screening the initial uplink and downlink roads according to the cable-stayed bridge attribute points in the road attribute points, and determining the uplink and downlink roads matched with the cable-stayed bridge attribute points.
4. The method according to claim 1, wherein after said generating a bridge model of the cable-stayed bridge according to the bridge parameters, the method further comprises: merging the bridge models of the same type into a batch rendering unit; And submitting the transformation matrix of the batch rendering units to a graphic processing unit to obtain the rendered bridge model.
5. The method of claim 4, wherein submitting the transformation matrix of the batch rendering unit to a graphics processing unit results in the rendered bridge model, comprising: determining corresponding rendering parameters according to the type of the bridge model; and submitting the transformation matrix of the batch rendering units and the rendering parameters to a graphic processing unit to obtain the rendered bridge model.
6. The method of claim 4, wherein submitting the transformation matrix of the batch rendering unit to a graphics processing unit results in the rendered bridge model, comprising: Determining the rendering fineness of different model parts in the bridge model according to the distance between the model element in the bridge model and the camera; And submitting the transformation matrix of the batch rendering unit and the rendering fineness to a graphic processing unit so that the graphic processing unit respectively performs batch rendering on different model parts in the bridge model according to the rendering fineness to obtain the rendered bridge model.
7. The method of claim 4, wherein submitting the transformation matrix of the batch rendering unit to a graphics processing unit results in the rendered bridge model, comprising: Intersecting the bounding box in the transformation matrix with a camera view cone to determine a visible part in the bridge model; and submitting the transformation matrix of the batch rendering units and the visible part in the bridge model to a graphic processing unit so that the graphic processing unit renders the visible part in the bridge model to obtain the rendered bridge model.
8. A device for generating a cable-stayed bridge model, comprising: The acquisition module is used for acquiring lane-level data of the cable-stayed bridge; the determining module is used for determining bridge parameters matched with the cable-stayed bridge in the lane group information according to the road attribute points in the lane-level data, wherein the road attribute points represent the relative positions of elements in the cable-stayed bridge; and the generating module is used for generating a bridge model of the cable-stayed bridge according to the bridge parameters.
9. An electronic device is characterized by comprising a memory and a processor; The memory stores computer-executable instructions; The processor executing computer-executable instructions stored in the memory, causing the processor to perform the method of any one of claims 1-7.
10. A computer readable storage medium/computer program product, characterized in that the computer readable storage medium has stored therein computer executable instructions for implementing the method according to any of claims 1-7 when executed by a processor; The computer program product comprising a computer program which, when executed by a processor, implements the method of any of claims 1-7.

Description

Method, device, equipment, medium and product for generating cable-stayed bridge model Technical Field The present application relates to the field of image processing technologies, and in particular, to a method, an apparatus, a device, a medium, and a product for generating a cable-stayed bridge model. Background With the rapid development of intelligent traffic systems and automatic driving technologies, lane-level navigation has become a key support for improving travel safety and efficiency. The technical field is highly dependent on depth fusion of a high-precision Map (HD Map) and real-time dynamic data, and aims to provide centimeter-level positioning service and fine path guidance for vehicles. In a complex road structure, the cable-stayed bridge is used as a key traffic node, and the accurate construction of a model of the cable-stayed bridge has important significance for guaranteeing navigation continuity and reliability. At present, the traditional cable-stayed bridge modeling method generally adopts a strategy of independent modeling and static data matching. The method comprises the steps of obtaining the geometric structure of the bridge through professional mapping means, constructing an independent three-dimensional bridge model, and then carrying out spatial registration on the model and lane-level data (including the attributes of the number of lanes, lane side lines, guardrail positions and the like). The process mainly relies on an initial finite element model or basic geographic information data, and coordinate system conversion and topology relation matching are carried out in a manual or semi-automatic mode so as to realize alignment; however, in the process of model construction and data fusion, complex factors in actual operation of a bridge are often difficult to fully consider, so that matching deviation occurs between a preset cable-stayed bridge model and lane-level data which are actually acquired, and the subsequent rendering optimization is affected. Disclosure of Invention The method, the device, the equipment, the medium and the product for generating the cable-stayed bridge model are used for achieving the effect of improving the accuracy of the generated cable-stayed bridge model. In a first aspect, an embodiment of the present application provides a method for generating a cable-stayed bridge model, including: obtaining lane-level data of a cable-stayed bridge; Determining bridge parameters matched with the cable-stayed bridge in the lane group information according to the road attribute points in the lane-level data, wherein the road attribute points represent the relative positions of elements in the cable-stayed bridge; And generating a bridge model of the cable-stayed bridge according to the bridge parameters. In one possible implementation manner, determining bridge parameters matched with the cable-stayed bridge in the lane group information according to the road attribute points in the lane-level data comprises: Screening the road information in the lane group information according to the uplink and downlink attribute points in the road attribute points, and determining the uplink and downlink roads in the lane group information; Determining a lane group in an uplink and downlink road and position information of the lane group according to the lane group attribute points in the road attribute points; determining a target lane group matched with the cable-stayed bridge in the lane group and target position information of the target lane group according to cable-stayed bridge attribute points in the road attribute points; and generating bridge parameters matched with the cable-stayed bridge according to the target position information of the target lane group. In one possible implementation manner, the method for screening the road information in the lane group information according to the uplink and downlink attribute points in the road attribute points to determine the uplink and downlink roads in the lane group information includes: Screening the road information in the lane group information according to the uplink and downlink attribute points in the road attribute points, and determining the initial uplink and downlink roads in the lane group information; and screening the initial uplink and downlink roads according to the cable-stayed bridge attribute points in the road attribute points, and determining the uplink and downlink roads matched with the cable-stayed bridge attribute points. In a possible embodiment, after generating the bridge model of the cable-stayed bridge according to the bridge parameters, the method further comprises: merging bridge models of the same type into a batch rendering unit; and submitting the transformation matrix of the batch rendering units to the graphic processing unit to obtain the rendered bridge model. In one possible implementation, submitting the transformation matrix of the batch rendering unit to the graphics process