Data Gap Classification for Terrestrial Laser Scanning-Derived Digital Elevation Models
نویسندگان
چکیده
منابع مشابه
An Accuracy Assessment of Derived Digital Elevation Models from Terrestrial Laser Scanning in a Sub-Tropical Forested Environment
Forest structure attributes produced from terrestrial laser scanning (TLS) rely on normalisation of the point cloud values from sensor coordinates to height above ground. One method to do this is through the derivation of an accurate and repeatable digital elevation model (DEM) from the TLS point cloud that is used to adjust the height. The primary aim of this paper was to test a number of TLS ...
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The current state of the art in checking the planimetric accuracy of Digital Elevation Models derived from Airborne Laser Scanning is analyzed. The principle of a proposed method is presented including the mathematical equations. Special emphasis is given to the precision of derived points which are used for the comparison with true values. Least squares adjustment is applied and the influence ...
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A Laser Altimetry (LIDAR) system aboard an aircraft can yield highly accurate data about the ground surface and vegetation below. Raw LIDAR points must be processed to generate a digital elevation model (DEM), i.e. a digital map of the terrain surface. A number of techniques can be used to generate the DEM, and in this report I investigate several of these including a new algorithm based on rec...
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ژورنال
عنوان ژورنال: ISPRS International Journal of Geo-Information
سال: 2020
ISSN: 2220-9964
DOI: 10.3390/ijgi9120749