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ICCV
2003
IEEE
16 years 8 months ago
Counting People in Crowds with a Real-Time Network of Simple Image Sensors
Estimating the number of people in a crowded environment is a central task in civilian surveillance. Most vision-based counting techniques depend on detecting individuals in order...
Danny B. Yang, Héctor H. González-Ba...
CVPR
2004
IEEE
16 years 8 months ago
Simultaneous Calibration and Tracking with a Network of Non-Overlapping Sensors
We describe a method for simultaneously recovering the trajectory of a target and the external calibration parameters of non-overlapping cameras in a multi-camera system. Each cam...
Ali Rahimi, Brian Dunagan, Trevor Darrell
MOBIHOC
2007
ACM
16 years 6 months ago
Containing denial-of-service attacks in broadcast authentication in sensor networks
Broadcast authentication is an important application in sensor networks. Public Key Cryptography (PKC) is desirable for this application, but due to the resource constraints on se...
Ronghua Wang, Wenliang Du, Peng Ning
MOBISYS
2004
ACM
16 years 6 months ago
Implementing Software on Resource-Constrained Mobile Sensors: Experiences with Impala and ZebraNet
ZebraNet is a mobile, wireless sensor network in which nodes move throughout an environment working to gather and process information about their surroundings [10]. As in many sen...
Ting Liu, Christopher M. Sadler, Pei Zhang, Margar...
ICDCS
2007
IEEE
16 years 27 days ago
Two-Tier Multiple Query Optimization for Sensor Networks
When there are multiple queries posed to the resourceconstrained wireless sensor network, it is critical to process them efficiently. In this paper, we propose a Two-Tier Multipl...
Shili Xiang, Hock-Beng Lim, Kian-Lee Tan, Yongluan...