A Novel Approach of Human Tracking Mechanism in Wireless Camera Networks

Author(s):  
Usha Devi Gandhi

The sensing power of traditional camera networks for efficiently addressing the critical tasks in the process of cluster – based target tracking of human, such as measurement integration, inclusion/exclusion in the cluster and cluster head rotation. The Wireless Camera Networks efficiently uses distribution friendly representation and methods in which every node contributes to the computation in each mechanism without the requirement of any prior knowledge of the rest of the nodes. These mechanisms and methods are integrated in two different distributed schemas so that it can be implemented in the same mean time without taking into the consideration of cluster size. Thus, the experimental evaluation shows that the proposed schemes and mechanisms drastically reduce the energy consumption and computational burden with respect to the existing methodology.

Author(s):  
Yi Zhou ◽  
Hichem Snoussi ◽  
Shibao Zheng ◽  
Fethi Smach

In wireless camera networks, the communication load between cameras is a major concern for visual tracking. To save the bandwidth, traditional applications transfer the spatial coordinates under the precondition of camera calibration, which is computationally unreasonable for large and mobile camera networks. In this chapter, we exploit the use of distinctive and fast to compute local features to represent the non-rigid targets. Transmission of feature descriptors between cameras is done without any calibration. Combining the haar-like patterns and relative color information, our local features succeed to re-identify and relocate the target among the distributed cameras. Furthermore, efficient interest point detection and matching scheme are proposed for the visual tracking under real-time constraints.


2015 ◽  
Vol 26 (12) ◽  
pp. 3371-3380 ◽  
Author(s):  
Hamidreza Tavakoli ◽  
Jelena Misic ◽  
Vojislav B. Misic ◽  
Majid Naderi

Author(s):  
Hadi Raheem Ali ◽  
Hussein Attia Lafta

Energy efficiency represents a fundamental issue in WSNs, since the network lifetime period entirely depends on the energy of sensor nodes, which are usually battery-operated. In this article, an unequal clustering-based routing protocol has been suggested, where parameters of energy, distance, and density are involved in the cluster head election. Besides, the sizes of clusters are unequal according to distance, energy, and density. Furthermore, the cluster heads are not changed every round unless the residual energy reaches a specific threshold of energy. The outcomes of the conducted simulation confirmed that the performance of the suggested protocol achieves improvement in energy efficiency.


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