Three-dimensional electronic map data creation method

一种电子数据、三维的技术，应用在三维电子地图数据的生成领域，能够解决不能时间上充分满足、长时间等问题，达到容易大范围的三维建模、高精度的效果

Inactive Publication Date: 2006-09-13
株式会社善邻
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the prior art cannot sufficiently satisfy the requirement in terms of time because it takes a long time to perform three-dimensional modeling.

Method used

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  • Three-dimensional electronic map data creation method
  • Three-dimensional electronic map data creation method
  • Three-dimensional electronic map data creation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] Embodiments of the present invention will be described by dividing them into the following items.

[0053] A. Structure of map data generation device

[0054] A1. The structure of the automatic modeling part

[0055] A2. Structure of the manual modeling section

[0056] A3. Structure of material generation part

[0057] B. Collection of Data Used for Modeling

[0058] c. Modeling

[0059] C1. Preprocessing

[0060] C2. Automatic modeling processing

[0061] C3. Manual modeling process

[0062] C4. Material Generation Processing

[0063] C5. Setting processing of additional structures

[0064] A. Structure of map data generation device

[0065] Figure 5 It is a configuration explanatory diagram of an electronic map data generation system 100 (hereinafter, simply referred to as the system 100 ) as an embodiment. The system 100 performs three-dimensional modeling of buildings and generates three-dimensional electronic map data. In this embodiment, the system 1...

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Abstract

When creating three-dimensional electronic map data, three-dimensional modeling of a building is performed as follows without measuring height of the building. Firstly, a building is photographed and the photographing position and photographing parameters (camera direction, angle of view) are recorded. Secondly, in a virtual space prepared on a computer, a photograph is arranged so as to reproduce the state upon the photographing according to these data. In combination with this, a plan view of the building is arranged according to the two-dimensional map data. Thirdly, the plan view is moved in the height direction until it is overlapped with the photograph, thereby modeling the building. Thus, it is possible to realize three-dimensional modeling without measuring the height.

Description

technical field [0001] The present invention relates to a three-dimensional modeling technology for generating three-dimensional electronic data of buildings, and a technology for generating three-dimensional electronic map data using the modeling method. Background technique [0002] In recent years, electronic map data (hereinafter referred to as "electronic map data") usable on computers has been widely used. The electronic map data is used for displaying maps on ordinary personal computers, car navigation systems, providing maps via the Internet, making master plates for printed maps, and the like. In addition, a three-dimensional display is used in the navigation system so that the driver can intuitively judge the road ahead. By displaying buildings, etc. in three dimensions, it is easier to grasp the current position and the way forward. [0003] Three-dimensional data of the building is required for three-dimensional display. On the other hand, it is very laborious...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/50G08G1/0969G06T17/05G01C21/00G01C21/26G06T7/00G06T17/00G06T17/10G06T19/20G09B29/00
CPCG06F17/5004G06T17/05G06T15/04G06T17/00G06T7/0051G06T17/10G06T7/50G06F30/13G06F30/00
Inventor 岸川喜代成
Owner 株式会社善邻
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