Abstract

A rapid digital image processing method for converting Landsat imagery to perspective land scenes is presented.
In order to shorten the processing time, elevation data of DTM is transformed into image data and the processing procedure is divided into two stages; at first stage, elevation image and B.G. and R image are twodimensionally processed and at the second stage, perspective scene is reconstructed by the overwritting method which automatically eliminates hidden pixels.
The processing time for perspective image of full color is reduced to about one half compared with ordinary pixel-to pixel transformation. A sequence of synthesized images of Mt. Yotei near Sapporo is shown, which is viewed from various view points and also a simulated image of flood is presented as an application of perspective images.