671 search results - page 33 / 135 » Spatial Reasoning with a Hole |
GIS
2005
ACM
14 years 8 months ago
2005
ACM
Recent advances in low-power sensing devices coupled with the widespread availability of wireless ad-hoc networks have fueled the development of sensor networks. These are typical...
SIGMOD
2000
ACM
13 years 12 months ago
2000
ACM
We consider spatio-temporal databases supporting spatial objects with continuously changing position and extent, termed moving objects databases. We formally define a data model f...
VVS
1996
IEEE
13 years 11 months ago
1996
IEEE
We propose a fast algorithm for rendering general irregular grids. Our method uses a sweep-plane approach to accelerate ray casting, and can handle disconnected and nonconvex (eve...
VMV
2001
13 years 9 months ago
2001
We present a novel, real-time disparity analysis frame work developed for immersive teleconferencing. This two-stage method computes a limited number of highly reliable disparitie...
GIS
1992
ACM
13 years 11 months ago
1992
ACM
Theoretical and empirical work on the geometry of environmental knowledge is discussed. Certain patterns of distanc.e and directional estimates collected from humans have been inte...