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GIS
2010
ACM
15 years 3 months ago
Tolerance geometry: Euclid's first postulate for points and lines with extension
Object representation and reasoning in vector based geographic information systems (GIS) is based on Euclidean geometry. Euclidean geometry is built upon Euclid's first postu...
Gwen Wilke, Andrew U. Frank
GIS
2010
ACM
15 years 3 months ago
Natural neighbor interpolation based grid DEM construction using a GPU
With modern LiDAR technology the amount of topographic data, in the form of massive point clouds, has increased dramatically. One of the most fundamental GIS tasks is to construct...
Alex Beutel, Thomas Mølhave, Pankaj K. Agar...
IGARSS
2010
15 years 3 months ago
Long time series of Landsat images to reconstruct River surface temperature and turbidity regimes of Guadalquivir Estuary
In the last century the Guadalquivir River in Andalusia has been dramatically transformed affecting its ecological and hydrological functioning. In view of a new dredging plan to ...
Ricardo Diaz-Delgado, Iban Ameztoy, Jordi Cristoba...
IGARSS
2009
15 years 3 months ago
Modeling Surface-flow Characteristics in Glaciated Landscapes
The Prairie Pothole Region (PPR) of the US and Canada is characterized by thousands of shallow, water-filled depressions with sizes ranging from a fraction of a hectare to several...
Janet Gritzner
ICDE
2008
IEEE
139views Database» more  ICDE 2008»
16 years 6 months ago
Maintaining Connectivity in Dynamic Multimodal Network Models
Network data models are frequently used as a mechanism to describe the connectivity between spatial features in many emerging GIS applications (location-based services, transporta...
Petko Bakalov, Erik G. Hoel, Wee-Liang Heng, Vassi...