Subscribe Now Subscribe Today
Science Alert
 
Blue
   
Curve Top
Journal of Applied Sciences
  Year: 2007 | Volume: 7 | Issue: 20 | Page No.: 3069-3074
DOI: 10.3923/jas.2007.3069.3074
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Characterization of Areas of Pixels Modified During the Generation of Multiscale Digital Elevation Models

S. Dinesh

Abstract:
This research is aimed at characterizing the areas of pixels modified during the generation of multiscale Digital Elevation Models (DEMs). First, multiscale DEMs are generated using the lifting scheme. The area of pixels modified at each scale is computed. The computed areas are divided with the area of the DEM to obtain the normalized probability functions, which are used to compute the average size of convex and concave regions on the terrain of the DEM and the scale-independent average roughness of the terrain of the DEM due to the convex and concave region distribution averaged over the terrain. The proposed procedure provides a surface roughness parameter that is realistic with respect to the amplitudes and frequencies of the terrain, invariant to with respect to rotation and translation and has intuitive meaning.
PDF Fulltext XML References Citation Report Citation
How to cite this article:

S. Dinesh , 2007. Characterization of Areas of Pixels Modified During the Generation of Multiscale Digital Elevation Models. Journal of Applied Sciences, 7: 3069-3074.

DOI: 10.3923/jas.2007.3069.3074

URL: https://scialert.net/abstract/?doi=jas.2007.3069.3074

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 

Curve Bottom