Elevation Restoration of Natural Terrains Using the Fractal Technique

Jin, Gang-Gyoo; Kim, Hyun-Jun

Journal of Navigation and Port Research 2011;35(1):51-56.
Published online February 28, 2011.

프랙탈 기법을 이용한 자연지형의 고도 복원

진강규, 김현준

Elevation Restoration of Natural Terrains Using the Fractal Technique

Gang-Gyoo Jin, Hyun-Jun Kim

Abstract

In this paper, we presents an algorithm which restores lost data or increases resolution of a DTM(Digital terrain model) using fractal theory. Terrain information(fractal dimension and standard deviation) around the patch to be restored is extracted and then with this information and original data, the elevations of cells are interpolated using the random midpoint displacement method. The results of the proposed algorithm are compared with those of the bilinear and bicubic methods on a fractal terrain map.

Key Words: Random Midpoint Displacement법; Digital terrain map;Fractional Brownian motion;Fractal dimension;Interpolation; Random midpoint displacement