Introduction: ESA, SMART-1 has orbited around the Moon [1], Space Agencies of Japan, China, and India have expressed subsequent moon missions, and USA announced a return to the moon in New Vision for Space Exploration Program [2]. We have a Moon Rush. Japanese SELENE mission [3] has 14 instruments, and is going to provide a dataset more than 20TB. These massive and diverse data raise awareness ...

Geographically contours are virtual lines drawn across the terrain to join points that are at same elevation from certain reference point. Contours are essential morphological features that are used along with the associated elevation as basis for generating Terrain Model or Digital Elevation Model for the area of interest. These lines are represented at different scales depending upon the scal...

With the analysis of the already existed theories of 3D terrain visualization, it is argued that how to use Digital Elevation Model to construct 3D terrain models on Internet, in the light of Level of Detail technology in this paper. Finally an application system is developed to real-time display and operates the terrain on Internet.

A stereo vision based terrain traversability estimation method for offroad mobile robots is presented. The method models surrounding terrain using either sloped planes or a digital elevation model, based on the availability of suitable input data. This combination of two surface modeling techniques increases range and information content of the resulting terrain map.

At present, most of the digital data acquisition methods generate Digital Surface Model (DSM) and not a Digital Elevation Model (DEM). Conversion from DSM to DEM still has some drawbacks, especially the removing of off terrain point clouds and subsequently the generation of DEM within these spaces even though the methods are automated. In this paper it was intended to overcome this issue by att...