Results 241 to 250 of about 152,113 (287)
Some of the next articles are maybe not open access.
Localization-Oriented Coverage in Wireless Camera Sensor Networks
IEEE Transactions on Wireless Communications, 2011In this paper, we investigate the coverage problem from the perspective of target localization for wireless camera sensor networks. We first propose a novel localization-oriented sensing model based on the perspective projection of camera sensors.
Liang Liu, Xi Zhang, Huadong Ma
openaire +3 more sources
Sensor Localization and Camera Calibration in Distributed Camera Sensor Networks
2006 3rd International Conference on Broadband Communications, Networks and Systems, 2006Camera sensors constitute an information rich sensing modality with many potential applications in sensor networks. Their effectiveness in a sensor network setting however greatly relies on their ability to calibrate with respect to each other, and other sensors in the field. This paper examines node localization and camera calibration using the shared
Andrew Barton-Sweeney +2 more
openaire +1 more source
Minimum camera barrier coverage in wireless camera sensor networks
2012 Proceedings IEEE INFOCOM, 2012Barrier coverage is an important issue in wireless sensor network. In wireless camera sensor networks, the cameras take the images or videos of target objects, the position and angle of camera sensor impact on the sense range. Therefore, the barrier coverage problem in camera sensor network is different from scalar sensor network.
Huan Ma +4 more
openaire +1 more source
A storage-centric camera sensor network
Proceedings of the 4th international conference on Embedded networked sensor systems, 2006Improved energy-efficiency and storage capacity of new-generation NAND flash memory makes a compelling case for storage-centric sensor networks. Such a storage-centric sensor network emphasizes the use of platforms with larger storage and more extensive use of the storage capacities on sensors.
Gaurav Mathur +4 more
openaire +1 more source
Camera selection in visual sensor networks
2007 IEEE Conference on Advanced Video and Signal Based Surveillance, 2007Wireless networks of visual sensors have recently emerged as a new type of sensor-based intelligent system, with performance and complexity challenges that go beyond that of existing wireless sensor networks. The goal of the visual sensor network we examine is to provide a user with visual information from any arbitrary viewpoint within the monitored ...
Stanislava Soro, Wendi Heinzelman
openaire +1 more source
Camera Sensor network localization using FPGA
2010 International Conference on Intelligent and Advanced Systems, 2010Camera networks are important in a video surveillance system. Many surveillance systems research has been done; most of it utilizes a general purpose computer. However, the latest trend is to use small, task specific and low power computer to process and control the system; in another word using embedded systems.
Lina Noaman Elkhatib +2 more
openaire +1 more source
Trusted Video Streams in Camera Sensor Networks
2020 IEEE 18th International Conference on Embedded and Ubiquitous Computing (EUC), 2020Proof of integrity in produced video data by surveillance cameras requires active forensic methods such as signatures, otherwise authenticity and integrity can be comprised and data becomes unusable e. g. for legal evidence. But a simple file- or stream-signature loses its validity when the stream is cut in parts or by separating data and signature ...
Sven-Jannik Wohnert +3 more
openaire +1 more source
Reduction of sensor population in a camera sensor network
2008 International Symposium on Telecommunications, 2008The problem of surveillance for intrusion detection in a camera sensor network is addressed in this paper. In order to save limited resources, a sensing task should involve just the right number of sensors. For a wide enough coverage area random and uniform distribution can be applied.
M. Sanjabi +5 more
openaire +1 more source
Optimal camera selection for target localization in camera sensor networks
2008 42nd Annual Conference on Information Sciences and Systems, 2008In this paper, we address the problem of localization-oriented optimal cameras selection based upon a tradeoff between the accuracy of target localization and the energy consumption in camera sensor networks. We model the addressed problem into the combined optimization problem of selecting a sequence of sets to minimize the cost while achieving a ...
null Liang Liu +2 more
openaire +1 more source