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VLDB
2012
ACM
360views Database» more  VLDB 2012»
12 years 3 months ago
An adaptive updating protocol for reducing moving object database workload
In the last decade, spatio-temporal database research focuses on the design of effective and efficient indexing structures in support of location-based queries such as predictive...
Su Chen, Beng Chin Ooi, Zhenjie Zhang
ICDE
2010
IEEE
562views Database» more  ICDE 2010»
14 years 7 months ago
Multi-Guarded Safe Zone: An Effective Technique to Monitor Moving Circular Range Queries
Given a positive value r, a circular range query returns the objects that lie within the distance r of the query location. In this paper, we study the circular range queries that c...
Muhammad Aamir Cheema, Ljiljana Brankovic, Xuemin ...
ICRA
2007
IEEE
211views Robotics» more  ICRA 2007»
14 years 1 months ago
Control Camera and Light Source Positions using Image Gradient Information
— In this paper, we propose an original approach to control camera position and/or lighting conditions in an environment using image gradient information. Our goal is to ensure a...
Éric Marchand
ISCAPDCS
2004
13 years 9 months ago
Location Based Access to Moving Data Sources
Location based services in mobile environments have been recognized as a challenging problem that calls for new service models and dynamic strategies. The problem becomes even har...
Shiow-yang Wu, Wei-chung Ko
ICRA
2009
IEEE
248views Robotics» more  ICRA 2009»
14 years 2 months ago
Moving obstacle detection in highly dynamic scenes
Abstract— We address the problem of vision-based multiperson tracking in busy pedestrian zones using a stereo rig mounted on a mobile platform. Specifically, we are interested i...
Andreas Ess, Bastian Leibe, Konrad Schindler, Luc ...