Projected displaced-mesh: A fast terrain visualization algorithm

Author

Luo, Jianxin ; Ni, Guiqiang ; Luo, Kun

Author_Institution

Inst. of Command Autom., PLA Univ. of Sci. & Technol., Nanjing

fYear

2009

fDate

11-12 April 2009

Firstpage

226

Lastpage

232

Abstract

We present an algorithm called projected displaced-mesh (PDM) based on projected-grid for terrains. This algorithm is different from the previous algorithms. Our algorithm uses displaced-mesh. It creates terrain mesh by projecting, and then displaces the vertices from height field. Because of the use of projection, the algorithm has automatic view dependent continuous level of detail (CLOD), automatic view frustum culled characteristic, and there is no limitation on view position. The experiment shows that our algorithm generated a high quality image and has a very fast rendering-rate.

Keywords

computational geometry; data visualisation; mesh generation; rendering (computer graphics); terrain mapping; automatic view frustum culled characteristic; continuous level-of-detail; projected displaced-mesh algorithm; rendering; terrain visualization algorithm; Acceleration; Automation; Displays; Large-scale systems; Layout; Programmable logic arrays; Real time systems; Rendering (computer graphics); Tin; Visualization; Projected Displaced-Mesh; Projected grid; continuous level of detail; terrain walkthrough; view-dependent deviation;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Analysis and Signal Processing, 2009. IASP 2009. International Conference on

Conference_Location

Taizhou

Print_ISBN

978-1-4244-3987-4

Type

conf

DOI

10.1109/IASP.2009.5054576

Filename

5054576