Segmentation of physiographic features from the global digital elevation model/GTOPO30
Computers & Geosciences
Geomorphometric mapping of Zagros Ranges at regional scale
Computers & Geosciences
Extraction of bajadas from digital elevation models and satellite imagery
Computers & Geosciences
International Journal of Remote Sensing
Extraction of buildings footprint from LiDAR altimetry data with the hermite transform
MCPR'11 Proceedings of the Third Mexican conference on Pattern recognition
Combining LiDAR intensity with aerial camera data to discriminate agricultural land uses
Computers and Electronics in Agriculture
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A new method is presented for the extraction of a class for buildings from light detection and ranging (LIDAR) digital elevation models (DEMs) on the basis of geomorphometric segmentation principles. First, seed cells and region growing criteria are specified. Then an object partition framework is defined on the basis of region growing segmentation. Size filtering is applied to objects and connected components labelling identifies background and foreground objects that are parametrically represented on the basis of elevation and slope. K-means classification reveals a set of clusters. The interpretation of the spatial distribution of clusters assisted by the interpretation of cluster centroids, allows for the identification of the building class, as well as building sub-classes with different geomorphometric characteristics.