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Modeling method and device of three-dimensional road intersection

A technology of three-dimensional roads and intersections, applied in 3D modeling, 3D image processing, instruments, etc., can solve the problems of large capacity space, low efficiency, unfavorable productivity and production efficiency, etc., to improve usability and speed up Effect

Active Publication Date: 2010-12-29
BYD CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The method of manual modeling can make the model very delicate and real, but its biggest disadvantage is that the manual modeling workload is heavy and the efficiency is extremely low, which is not conducive to improving productivity and production efficiency, and seriously affects the application of 3D road models in various fields
At the same time, the storage of the model requires a large capacity space, which greatly limits the development of 3D maps.

Method used

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  • Modeling method and device of three-dimensional road intersection
  • Modeling method and device of three-dimensional road intersection
  • Modeling method and device of three-dimensional road intersection

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Embodiment Construction

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0023] first reference figure 1 , which is a structural diagram of a modeling device for a three-dimensional road intersection according to an embodiment of the present invention.

[0024] As shown in the figure, the modeling device of the present invention includes a transformation unit 12 , a determination unit 14 and a meshing unit 16 . The conversion unit 12 converts the two-dimensional road into a three-dimensional road surface having a specific width and road edges using two-dimensional road data including road intersections.

[...

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Abstract

The invention discloses a modeling device of three-dimensional road intersections. The device comprises a conversion unit, a determining unit and a gridding unit, wherein the conversion unit utilizes three-dimensional road data with road intersections to convert a two-dimensional road to a three-dimensional road with the specified width and road edges; the determining unit obtains edge intersections corresponding to each two cross roads from the three-dimensional road and determines the road intersection areas of the three-dimensional road according to the turning radius and the edge intersections; and the gridding unit performs triangular gridding to the road intersection areas to obtain the model of the three-dimensional road intersections. By using the device of the invention, the modeling of the three-dimensional road intersection can be realized automatically and fast.

Description

technical field [0001] The invention relates to the field of three-dimensional navigation and modeling, in particular to a method and device for modeling three-dimensional road intersections. Background technique [0002] In many application fields, the traditional two-dimensional map is increasingly unable to meet the needs, and it is replaced by a 3D map that can produce a sense of being on the scene. With the upgrading of electronic product hardware, three-dimensional maps have become possible. The 3D map can not only provide all the information required by the two-dimensional map, but more importantly, it can reflect a three-dimensional world, and can provide users with richer and more intuitive visual effects, making people feel immersive. [0003] 3D maps include multiple levels of information such as terrain, roads, buildings, and landscapes, among which 3D roads are the most important part of 3D maps, and road intersections are an important part of roads and hubs wh...

Claims

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Application Information

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IPC IPC(8): G06T17/00G06T17/50G06T15/00G09B29/00
Inventor 刘兴国唐远流邓高伟
Owner BYD CO LTD
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