Reconstruction of 3-D Terrain Data from Contour Map

This pqm pments a rasterbased algorithm for reconstruction of 3-D terrain data from contour information appearing on the conventional 2-D map The height of an interior point between two neighboring contam is defined by a linear interpolation formula wt.lose variables are the height of those contours arid distance from the point to the contours. The distance from an interior mint to the contour is computed by using the distance transformation operation The distance transformation is a rasterbased operation which computes the value of a pixel using the values of neighboring pixels. So our algorithm has the advantage of easy mplenrntation, and it is fast since it performs d y simple computation during raster scanning. Also the experimtal results show that the reconstructed terrain p-esaves faithfully the terrain information appearing on the contour map.

• Type: Conference
• Year: 1994
• Where: MVA
• Authors: Jin-Seon Lee, Seung Jong Chung
• Keywords: Contours Arid Distance, Distance Transformation, Distance Transformation Operation, MVA 1994, MVA 2007