Journal ArticleDOI
Using a Wireless Sensor Network to Enhance Video Surveillance
Rita Cucchiara,Andrea Prati,Roberto Vezzani,Luca Benini,Elisabetta Farella,Piero Zappi +5 more
- Vol. 1, Iss: 2, pp 187-196
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TLDR
A computer vision system able to detect and track people from multiple cameras is integrated with a wireless sensor network mounting PIR (Passive InfraRed) sensors to improve the accuracy of the vision system.Abstract:
To enhance video surveillance systems, multi-modal sensor integration can be a successful strategy. In this work, a computer vision system able to detect and track people from multiple cameras is integrated with a wireless sensor network mounting PIR (Passive InfraRed) sensors. The two subsystems are briefly described and possible cases in which computer vision algorithms are likely to fail are discussed. Then, simple but reliable outputs from the PIR sensor nodes are exploited to improve the accuracy of the vision system. In particular, two case studies are reported: the first uses the presence detection of PIR sensors to disambiguate between an open door and a moving person, while the second handles motion direction changes during occlusions. Preliminary results are reported and demonstrate the usefulness of the integration of the two subsystems.read more
Citations
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Communication performances of IEEE 802.15.4 wireless sensor motes for data-intensive applications
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Journal ArticleDOI
Elderly Patient Monitoring System Using a Wireless Sensor Network
TL;DR: A network that supports various wearable sensors and contains on-board general computing capabilities for individual event detection, alerts, and communications with various medical informatics services to provide extended monitoring for elderly patients under drug therapy after infarction, data collection in some particular cases, and remote consultation for elderly people.
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Sensor grid applications in patient monitoring
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References
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Journal ArticleDOI
Detecting moving objects, ghosts, and shadows in video streams
TL;DR: A general-purpose method is proposed that combines statistical assumptions with the object-level knowledge of moving objects, apparent objects (ghosts), and shadows acquired in the processing of the previous frames to improve object segmentation and background update.
Journal ArticleDOI
Guest Editors' Introduction: Overview of Sensor Networks
TL;DR: Wireless sensor networks could advance many scientific pursuits while providing a vehicle for enhancing various forms of productivity, including manufacturing, agriculture, construction, and transportation.
Proceedings ArticleDOI
Multi-camera multi-person tracking for EasyLiving
TL;DR: In this article, the authors used two sets of color stereo cameras for tracking multiple people during live demonstrations in a living room, and the stereo images were used for locating people and the color images are used for maintaining their identities.
Journal ArticleDOI
Intelligent distributed surveillance systems: a review
M. Valera,Sergio A. Velastin +1 more
TL;DR: This survey describes the current state-of-the-art in the development of automated visual surveillance systems to provide researchers in the field with a summary of progress achieved to date and to identify areas where further research is needed.
Journal ArticleDOI
Consistent labeling of tracked objects in multiple cameras with overlapping fields of view
Sohaib Khan,Mubarak Shah +1 more
TL;DR: It is shown that, if the FOV lines are known, it is possible to disambiguate between multiple possibilities for correspondence, and once these lines are initialized, the homography between the views can also be recovered.