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WSCG
2004
156views more  WSCG 2004»
13 years 9 months ago
Efficient Collision Detection between 2D Polygons
Collision detection between moving objects is an open question which raises major problems concerning its algorithmic complexity. In this paper we present a polygon collision dete...
Juan José Jiménez, Rafael Jesú...
GEOINFORMATICA
2011
13 years 2 months ago
Qualitative change detection using sensor networks based on connectivity information
The research reported in this paper uses wireless sensor networks to provide salient information about spatially distributed dynamic fields, such as regional variations in tempera...
Jixiang Jiang, Michael F. Worboys, Silvia Nittel
ICASSP
2011
IEEE
12 years 11 months ago
Two dimensional nested arrays on lattices
In this paper, we develop the theory of a new class of two dimensional arrays with sensors on lattice(s) which can be used to construct a virtual array of much larger size through...
Piya Pal, Palghat P. Vaidyanathan
GIS
2006
ACM
14 years 8 months ago
Filtering with raster signatures
Efficient evaluation of spatial queries is an important issue in spatial database. Among spatial operations, spatial join is very useful, intersection being the most common predic...
Leonardo Guerreiro Azevedo, Ralf Hartmut Güti...
GEOINFORMATICA
2008
123views more  GEOINFORMATICA 2008»
13 years 7 months ago
Efficient Implementation Techniques for Topological Predicates on Complex Spatial Objects
Topological relationships like overlap, inside, meet, and disjoint uniquely characterize the relative position between objects in space. For a long time, they have been a focus of...
Reasey Praing, Markus Schneider