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Morphological Processing of Severely Occluded Digital Elevation Images to Extract and Connect Stream Channels
2007
2007 IEEE International Conference on Image Processing
Recent advances in technology have enabled the acquisition of high-resolution topographic data by means of Airborne Laser Swath Mapping (ALSM), which can yield Digital Elevation Models (DEMs) with horizontal resolutions of 1m. A DEM is a grayscale image wherein pixel value corresponds to elevation. Using ALSM imaging systems over forested terrain, we filter out the laser returns from the occluding foliage and estimate bare-surface DEMs. Extracting stream networks from DEMs is important for
doi:10.1109/icip.2007.4379137
dblp:conf/icip/ChoS07
fatcat:rfv2kwb2mzh6bacqafquuvodde