Parallel and distributed computation: numerical methods
Parallel and distributed computation: numerical methods
Learning and Classification of Complex Dynamics
IEEE Transactions on Pattern Analysis and Machine Intelligence
Distributed Algorithms
Consensus in Asynchronous Distributed Systems: A Concise Guided Tour
Advances in Distributed Systems, Advanced Distributed Computing: From Algorithms to Systems
Camera handoff: tracking in multiple uncalibrated stationary cameras
HUMO '00 Proceedings of the Workshop on Human Motion (HUMO'00)
Histograms of Oriented Gradients for Human Detection
CVPR '05 Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Volume 1 - Volume 01
Inference of Non-Overlapping Camera Network Topology by Measuring Statistical Dependence
ICCV '05 Proceedings of the Tenth IEEE International Conference on Computer Vision - Volume 2
Matching Shape Sequences in Video with Applications in Human Movement Analysis
IEEE Transactions on Pattern Analysis and Machine Intelligence
Location-based activity recognition using relational Markov networks
IJCAI'05 Proceedings of the 19th international joint conference on Artificial intelligence
Multi-camera people tracking by collaborative particle filters and principal axis-based integration
ACCV'07 Proceedings of the 8th Asian conference on Computer vision - Volume Part I
Multi-view gymnastic activity recognition with fused HMM
ACCV'07 Proceedings of the 8th Asian conference on Computer vision - Volume Part I
Bridging the gaps between cameras
CVPR'04 Proceedings of the 2004 IEEE computer society conference on Computer vision and pattern recognition
A multiview approach to tracking people in crowded scenes using a planar homography constraint
ECCV'06 Proceedings of the 9th European conference on Computer Vision - Volume Part IV
Distributed framework for composite event recognition in a calibrated pan-tilt camera network
Proceedings of the Seventh Indian Conference on Computer Vision, Graphics and Image Processing
Consensus algorithms in a multi-agent framework to solve PTZ camera reconfiguration in UAVs
ICIRA'12 Proceedings of the 5th international conference on Intelligent Robotics and Applications - Volume Part I
Statistical inference of motion in the invisible
ECCV'12 Proceedings of the 12th European conference on Computer Vision - Volume Part IV
Modeling Coverage in Camera Networks: A Survey
International Journal of Computer Vision
Distributed data association in smart camera networks using belief propagation
ACM Transactions on Sensor Networks (TOSN)
Socio-economic vision graph generation and handover in distributed smart camera networks
ACM Transactions on Sensor Networks (TOSN)
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Camera networks are being deployed for various applications like security and surveillance, disaster response and environmental modeling. However, there is little automated processing of the data. Moreover, most methods for multicamera analysis are centralized schemes that require the data to be present at a central server. In many applications, this is prohibitively expensive, both technically and economically. In this paper, we investigate distributed scene analysis algorithms by leveraging upon concepts of consensus that have been studied in the context of multiagent systems, but have had little applications in video analysis. Each camera estimates certain parameters based upon its own sensed data which is then shared locally with the neighboring cameras in an iterative fashion, and a final estimate is arrived at in the network using consensus algorithms. We specifically focus on two basic problems--tracking and activity recognition. For multitarget tracking in a distributed camera network, we show how the Kalman-Consensus algorithm can be adapted to take into account the directional nature of video sensors and the network topology. For the activity recognition problem, we derive a probabilistic consensus scheme that combines the similarity scores of neighboring cameras to come up with a probability for each action at the network level. Thorough experimental results are shown on real data along with a quantitative analysis.