Accuracy Assessment of Lidar Elevation Data Using Survey Marks
نویسندگان
چکیده
منابع مشابه
Accuracy Assessment of Lidar-derived Digital Elevation Models
Despite the relatively high cost of airborne lidar-derived digital elevation models (DEMs), such products are usually presented without a satisfactory associated estimate of accuracy. For the most part, DEM accuracy estimates are typically provided by comparing lidar heights against a finite sample of check point coordinates from an independent source of higher accuracy, supposing a normal dist...
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With recent advances of lidar technology, the accuracy potential of lidar data has significantly improved. State-ofthe-art lidar systems can achieve 2 to 3 cm ranging accuracy under ideal conditions, which is the accuracy level required by engineering scale mapping. However, this is also the accuracy range that cannot be realized by routine navigation-based direct sensor platform orientation. F...
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data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
Generate Digital Elevation Models Using Laser Altimetry (LIDAR) Data Literature Survey
Laser altimetry (LIDAR) data must be processed to generate a digital elevation model (DEM), a digital map of the terrain surface. The raw LIDAR points can be processed and then gridded to form a map of the ground surface. For example, a waveform generated by binning a set of points over a limited region can be decomposed into a set of Gaussian components. The component with the lowest mean repr...
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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: Survey Review
سال: 2011
ISSN: 0039-6265,1752-2706
DOI: 10.1179/003962611x12894696204704