A Semi-Automatic High Resolution SAR Data Interpretation ...
A Study on Automatic Interpretation of Terrain by using 3D ...
Transcript of A Study on Automatic Interpretation of Terrain by using 3D ...
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A Study on Automatic Interpretation of Terrain by using 3D map data ïŒDebris Flow, Landslide, Rapid LandslideïŒ
YUKI KURATA NAOYUKI TURUTA NORIMICHI HIROSHIGEâ 1
Abstract: Terrain changes, called mass movements, occur repeatedly in history and can cause disasters. In this study, we proposed a framework for automatic interpretation of terrain by applying an image processing to 3D map data, and examined its feasibility. In our method, DEM data is regarded as a grayscale image, and a LoG filter is applied to obtain a binary image including convex regions and concave regions on the terrain. At this time, the shape change of the mass movement terrain due to the scale change of the Gaussian filter differs from that of the normal terrain. Based on this idea, we considered the effective shape features for terrain interpretation. Keywords: Terrain interpretation, mass movement terrain, Scale space, DEM data, Regional information systems
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