A view-dependent method for the multi-resolution representation of terrains with roads embedded

  • Authors:

  • X. Zuo;Q. Li;B. Yang;T. Cheng

  • Affiliations:

  • Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming, China, 650093;State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, China, 430079;State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, China, 430079;Department of Geomatic Engineering, University College London, London, WC1E 6BT

  • Venue:
  • International Journal of Remote Sensing
  • Year:
  • 2007

Quantified Score

Hi-index 0.00

Visualization

Abstract

Generating multi-resolution terrain models dynamically is necessary for rapid visualization because of the huge volume of data and the limited memory of computers. However, it is difficult to generate dynamic multi-resolution terrain models with the roads embedded. This paper proposes a new method for generating these models. In contrast to previous approaches, our method divides the integrated terrains into multiple levels with a '▒' shape, and dynamically generates multi-resolution terrain models with the roads embedded. Moreover, our method efficiently overcomes thin, long-shaped triangles in multi-resolution terrain models. On the other hand, the number of triangles in adjacent frames is efficiently updated during walking/flying through visualization. The experimental results demonstrate that the proposed method acquires better performance in terms of accuracy for the multi-resolution representation of terrains with the roads embedded.