doi: 10.7763/IJIMT.2013.V4.369
View-Dependent Multiresolution Representation for a Height Map
Yong H. Chung1
,
Won K. Hwam1 ,
Dae S. Chang1 ,
Jung-Ju Choi2 ,
Sang C. Park1
- 1Department of Industrial Engineering, Ajou University, Suwon, Republic ofKorea.
- 2Department of Media, Ajou University, Suwon, Republic of Korea.
Abstract
Terrain visualization is a difficult problem for applications requiring accurate image of large datasets at high frame rates. We propose new view-dependent-multi-resolution representation method of large-scale terrain, which inherits the accuracy of 3D-methods as well as the memory efficient of2.5D-methods. The proposed approach maintains a full decimation procedure of a height map for a maximum tolerance, and creates End-Start-tree, which is used to represent multi-resolution triangular mesh. For the approximation of a height map, the proposed algorithm employs the QEM (quadric error metrics) method. We demonstrate new visualization algorithm of large-scale terrain.
Keywords
- Terrain
- Height map
- Digital elevation model
- View-dependent LOD
- Quadric error metrics
- simplification
How to Cite
Yong H. Chung, Won K. Hwam, Dae S. Chang, Jung-Ju Choi, and Sang C. Park, "View-Dependent Multiresolution Representation for a Height Map," International Journal of Innovation, Management and Technology, vol. 4, no. 1, pp. 104-108, 2013. https://doi.org/10.7763/IJIMT.2013.V4.369
Copyright & License
Copyright © 2013 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).