2006 Fiscal Year Final Research Report Summary
Research of Terrain Information Model based on Terrain Specific Features and 3-D Presentation
| Project/Area Number |
17500701
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Geography
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| Research Institution | Miyagi University |
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Principal Investigator |
MAKANAE Koji Miyagi University, School of Project Design, Professor, 事業構想学部, 教授 (10295404)
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| Project Period (FY) |
2005 – 2006
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| Keywords | geographic information system / 3-D terrain representation / tangible display / CAD / contour line / virtual reality / highway alignment design |
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| Research Abstract |
1. The aim of this research
The aim of this research is to build a 3-D terrain data model which is determined by semantic information instead of contour data or grid data The contents of this research are as follows ;
・Development of a 3-D terrain data model by the specific features of terrain such as ridge lines, valley lines.
・Development and evaluation of 3-D terrain representation systems using a head mounted display or tangible terrain display
2. Abstracts of this research
1) Developments of the terrain information data model.
In this research, ridge lines and valley lines were selected as the specific features which form the 3-D terrain. The terrain data model was developed by determination of topology of these features. Then, a prototype system implemented an algorithm to rebuild the surface of terrain was developed. It shows that the terrain data model is effective to represent 3-D terrain features.
2) Developments of 3-D terrain representation systems
A tangible terrain display which can represent any terrain features from grid elevation data was developed in this research. The systems cat n represent terrain features by a flexible screen which is controlled by 8x8 stepping motors and on which the image of the aerial photographs is projected. Then, a prototype system which can design a highway route on the tangible display was developed and evaluated as compared with a system using a head mounted display. For another attempt, a small model of the tangible terrain display is developed and evaluated, and future tasks for development are enumerated.
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Research Products
(14 results)
