Cartographic feature extraction with integrated SIR-B and Landsat TM images

This is the authors' abstract. We don't add key points for this paper.

A digital cartographic multisensor image database of excellent geometry and improved resolution was created by registering Shuttle Imaging Radar-B (SIR-B) images to a rectified Landsat Thematic Mapper (TM) reference image and applying intensity-hue-saturation enhancement techniques. When evaluated against geodetic control, RMSEXY values of approximately ±20m were noted for the composite S1R-B/TM images. The completeness of cartographic features extracted from the composite images exceeded those obtained from separate SIR-B and TM image data sets by approximately 10 and 25 per cent, respectively, indicating that the composite images may prove suitable for plani-metric mapping at a scale of 1:100000 or smaller. At present, the most effective method for extracting cartographic information involves digitizing features directly from the image processing display screen.