60 search results - page 12 / 12 » Query point visibility computation in polygons with holes |
ALGOSENSORS
2007
Springer
14 years 1 months ago
2007
Springer
Abstract. We consider the problem of counting the number of indistinguishable targets using a simple binary sensing model. Our setting includes an unknown number of point targets i...
CGI
2003
IEEE
13 years 11 months ago
2003
IEEE
Location-aware mobile users need to access, query, and visualize, geographic information in a wide variety of applications including tourism, navigation, environmental management,...
CVPR
2003
IEEE
14 years 9 months ago
2003
IEEE
Monitoring activities using video data is an important surveillance problem. A special scenario is to learn the pattern of normal activities and detect abnormal events from a very...
MM
2006
ACM
14 years 1 months ago
2006
ACM
Conventional wide-area video surveillance systems use a network of fixed cameras positioned close to locations of interest. We describe an alternative and flexible approach to w...
PRICAI
2004
Springer
14 years 26 days ago
2004
Springer
We present a novel geometric model for robot mapping based on shape. Shape similarity measure and matching techniques originating from computer vision are specially redesigned for ...