Adjustment and Filtering of Raw Laser Altimetry Data
نویسندگان
چکیده
Although laser altimetry has been used for the production of digital elevation models in different countries for several years, the completely automatic derivation of a DEM from the raw laser altimetry measurements is not yet mature. The two major problems are the detection of and correction for systematic errors in the laserscanner data and the separation of ground points from points resulting from reflections on buildings, vegetation or other objects above ground. This paper discusses strategies for dealing with these two steps in the production of a DEM from raw laser altimetry data. Results are shown of experiments with different data sets.
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