The "Plug & play" quantum cryptography scheme has significant advantage in real-life applications over other schemes and is adopted in most commercial quantum cryptosystems. Here, we present a rigorous s...
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In video-based surveillance people monitor a wide spatial area through video sensors for anomalous events related to safety and security. The size of the area, the number of video sensors, and the camera's narrow ...
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ISBN:
(纸本)9781615676231
In video-based surveillance people monitor a wide spatial area through video sensors for anomalous events related to safety and security. The size of the area, the number of video sensors, and the camera's narrow field-of-view make this a challenging cognitive task. computer vision researchers have developed a wide range of algorithms to recognize patterns in the video stream (intelligent cameras). These advances create a challenge for human supervision of these intelligent surveillance camera networks. This paper presents a new visualization that has been developed and implemented to integrate video-based computer vision algorithms with control of pan-tilt-zoom cameras in a manner that supports the human supervisory role.
Traffic jam often occurs around the signalized intersection because each takes "stop-and-go cost" to pass through the intersection. Stop-and-go cost traffic increases air pollution and gas consumption, produ...
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In this paper, we first present some dynamic TS fuzzy subsystems to approximate a nonlinear system. To make the subsystems asymptotically stable, the reference model with the same fuzzy sets of the system rule is esta...
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This paper proposes an asymmetrical pulse width modulation (APWM) with frequency tracking control of full bridge series resonant inverter for induction heating application. In this method, APWM is used as power regula...
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ISBN:
(纸本)9789948427155
This paper proposes an asymmetrical pulse width modulation (APWM) with frequency tracking control of full bridge series resonant inverter for induction heating application. In this method, APWM is used as power regulation, and phased locked loop (PLL) is used to attain zero-voltage-switching (ZVS) over a wide load range. The complete closed loop control model is obtained using small signal analysis. The validity of the proposed control is verified by simulation results.
Dynamic space warping (DSW) has emerged as a very effective algorithm for matching shapes. However, a central computational difficulty associated with DSW arises when a boundary's starting point (or rotation angle...
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ISBN:
(纸本)9781601321190
Dynamic space warping (DSW) has emerged as a very effective algorithm for matching shapes. However, a central computational difficulty associated with DSW arises when a boundary's starting point (or rotation angle) is unknown. In this paper, the HopDSW algorithm is proposed to speed up the starting point computation. Rather than performing an exhaustive search for the correct starting point as in classical approaches, the proposed algorithm operates in a coarse-tonne manner. The coarse search is global and uses a hopping step to exclude points from the search. Then, the search is refined in the neighborhood of the solution of the coarse search. A criterion that governs selecting the hopping step parameter is given, which reduces the number of starting point computations by an order. For shape representation, triangle area signature (TAS) is computed from triangles formed by the boundary points. Experimental results on the MPEG-7 CE-1 database of 1400 shapes show that the proposed algorithm returns the solution of the exhaustive search with a high degree of accuracy and a considerable reduction in the number of computations.
Describing CSCL scenarios can be performed in a standard way. To do so, Instructional Design or so called Learning Design (LD) can be used for describing CSCL scenarios by mean of a de facto specification known as IMS...
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The current Internet did not define any inherent management constructs and mechanisms;such concepts were added after networking standards and architectures were constructed. This also influenced network management for...
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ISBN:
(纸本)9781424443376
The current Internet did not define any inherent management constructs and mechanisms;such concepts were added after networking standards and architectures were constructed. This also influenced network management for other types of networks. This paper is the first in a series that explores concepts for a new autonomic approach to network management that can be used for current and next generation networks as well as for the Future Internet.
A simple direct adaptive proportional-plus-integral (PI) control scheme is introduced, for linear time-delay systems with polytopic uncertainties. Sufficient conditions for closed-loop stability of the proposed contro...
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Scale-free network and consensus among multiple agents have both drawn quite much attention. To investigate the consensus speed over scale-free networks is the main topic in this paper. Given a set of different values...
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Scale-free network and consensus among multiple agents have both drawn quite much attention. To investigate the consensus speed over scale-free networks is the main topic in this paper. Given a set of different values for the power-law distribution parameter γ, and a set of different values for the minimum degree ( d min ) for the nodes, the algebraic connectivity (λ 2 ) of the network topology is studied, as well as the time ( t c ) (or iteration ( k c ), for discrete algorithm) taken to reach consensus. The results exhibit that λ 2 decreases while γ increases. The λ 2 increases monotonically as d min grows, and they fit very well in a linear relationship. t c (or k c ) decreases as γ reduces and d min increases. Via observing the behavior of the largest eigenvalue (λ n ) of the Laplacian of the network topology, we draw the conclusion that the robustness over time delays declines while the robustness over node-failures and edge-failures increases.
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