Spatial Enhancement of Digital Terrain Model Using Shape from Shading with Single Satellite Imagery
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چکیده
منابع مشابه
Densification of Digital Terrain Elevations Using Shape from Shading with Single Satellite Imagery
Numerous geoscience and engineering applications need denser and more accurate Digital Terrain Model (DTM) height data. Collecting additional height data in the field, if not impossible, is either expensive or time consuming or both. Stereo aerial or satellite imagery is often unavailable and very expensive to acquire. Interpolation techniques are fast and cheap, but have their own inherent dif...
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Digital Terrain Models (DTMs) are simply regular grids of elevation measurements over the land surface. DTMs are mainly extracted by applying the technique of stereo measurements on images available from photogrammetry and remote sensing. Enormous amounts of local and global DTM data with different specifications are now available. However, there are many geoscience and engineering applications...
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Shading information in satellite imagery will give user an immediate appreciation for the surface topography. In this paper, an attempt has been made to reconstruct 3D shape or Depth elevation model (DEM) of satellite imagery using Shape from Shading approach. Three widely used shape from shading algorithms – Pentland‟s Linear approach, Lee and Rosenfeld‟s approach and Horn‟s approach were used...
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