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» Performance Comparison of Point and Spatial Access Methods
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KI
2002
Springer
13 years 7 months ago
Qualitative Velocity and Ball Interception
In many approaches for qualitative spatial reasoning, navigation of an agent in a more or less static environment is considered (e.g. in the double-cross calculus [12]). However, i...
Frieder Stolzenburg, Oliver Obst, Jan Murray
VLDB
2006
ACM
171views Database» more  VLDB 2006»
14 years 8 months ago
Grid-partition index: a hybrid method for nearest-neighbor queries in wireless location-based services
Abstract Traditional nearest-neighbor (NN) search is based on two basic indexing approaches: object-based indexing and solution-based indexing. The former is constructed based on t...
Baihua Zheng, Jianliang Xu, Wang-Chien Lee, Dik Lu...
GIS
2004
ACM
14 years 8 months ago
Automatically and accurately conflating orthoimagery and street maps
Recent growth of the geospatial information on the web has made it possible to easily access various maps and orthoimagery. By integrating these maps and imagery, we can create in...
Ching-Chien Chen, Craig A. Knoblock, Cyrus Shahabi...
ISBI
2006
IEEE
14 years 8 months ago
Improved segmentation of focal cortical dysplasia lesions on MRI using expansion towards cortical boundaries
Focal cortical dysplasia (FCD), a malformation of cortical development, is an important cause of intractable epilepsy. On Magnetic Resonance Images (MRI), FCD lesions are difficul...
Olivier Colliot, Tommaso Mansi, Pierre Besson, Ned...
TIP
2008
99views more  TIP 2008»
13 years 7 months ago
Using Spanning Graphs for Efficient Image Registration
We provide a detailed analysis of the use of minimal spanning graphs as an alignment method for registering multimodal images. This yields an efficient graph theoretic algorithm th...
Mert R. Sabuncu, Peter J. Ramadge