Welcome!
To use the personalized features of this site, please log in or register.
If you have forgotten your username or password, we can help.
|
 |
3D Visualization of Large Digital Elevation Model (DEM) Data Set
| |
|
3D Visualization of Large Digital Elevation Model (DEM) Data Set
Min Sun7  , Yong Xue8, 9 , Ai-Nai Ma7 and Shan-Jun Mao7
| (7) |
Institute of Remote Sensing and Geographic Information System, Peking University, Beijing, 100871, China |
| (8) |
Laboratory of Remote Sensing Information Sciences, Institute of Remote Sensing Applications, Chinese Academy of Science, PO Box 9718, Beijing, 100101, China |
| (9) |
School of Informatics and Multimedia Technology, University of North London, 166-220, Holloway Road, London, N7 8DB, UK |
Abstract
With the rapid development of Earth observation technologies, raster data has become the main Geographic Information System
(GIS) data source. GIS should be able to manage and process huge raster data sets. In this paper, the problem of 3-dimensional
visualization of huge DEM data sets and its corresponding images data sets in GIS was addressed. A real-time delamination
method based on raster characteristics of DEM and image data has been developed. A simple geometry algorithm was used to implement
dynamic Level of Division (LOD) delamination of DEM and image data and to realize realtime 3-dimensional visualization of
huge DEM and image data set based on RDBMS management.
Fulltext Preview (Small, Large)
 References secured to subscribers.
|
|
|
|
|
|