With the growth of broadband networks, Video-on-Demand (VoD) has become realistic. Many significant broadcasting schemes have been proposed to reduce the viewers' waiting time. However, clients are required to rec...
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In this paper a new method for determining the search area for motion estimation algorithm based on block matching is suggested. In the proposed method the search area is adaptively found for each block of a frame. Th...
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With the growth of bandwidth, real-time video streaming service becomes popular. Such application is also considered a future killer application on Internet. Recent research efforts have demonstrated the promising pot...
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In this work a channel access protocol for multihop ad-hoc networks based on topology-dep.ndent transmission scheduling named Collision-Avoidance Time Allocation (Tang and Garcia-Luna-Aceves, 1999), is extended and ev...
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The purpose of this paper is to design and implement the remote control lab using PDA (Personal Digital Assistant). This system integrates different fields of technology. They are Internet control, mobile control, and...
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Security engineering deals with modeling, analysis, and implementation of complex security mechanisms. The dynamic nature of such mechanisms makes it difficult to anticipate undesirable emergent behavior. In this work...
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The development of a family of applications in a domain can be greatly eased if patterns in the domain are systematically reused. Systematic use of such patterns can be achieved by tools that support the specification...
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The next evolutionary step in enhancing video communication fidelity over wired and wireless networks is taken by adding scene dep.h. Three-dimensional video using integral imaging (II) based capture and display subsy...
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The next evolutionary step in enhancing video communication fidelity over wired and wireless networks is taken by adding scene dep.h. Three-dimensional video using integral imaging (II) based capture and display subsystems has shown promising results and is now in the early prototype stage. We have created a ray-tracing based interactive simulation environment to generate II video sequences as a way to assist in the development, evaluation and quick adoption of these new emerging techniques into the whole communication chain. A generic II description model is also proposed as the base for the simulation environment. This description model facilitate optically accurate II rendering using MegaPOV, a customized version of the open-source ray tracing package POV-Ray. By using MegaPOV as a rendering engine the simulation environment fully incorporate the scene description language of POV-Ray to exactly define a virtual scene. Generation and comparability of II video sequences adhering to different II-techniques is thereby greatly assisted, compared to experimental research. The initial development of the simulation environment is focused on generating and visualizing II source material adhering to the optical properties of different II-techniques published in the literature. Both temporally static as well as dynamic systems are considered. The simulation environment's potential for easy dep.oyment of integral imaging video sequences adhering to different II-techniques is demonstrated.
Efficient forest management requires resource information at fine scale. Satellite sensed imagery is one of potential tools for collecting forest resource. In this paper, we developed an automated delineation of tree ...
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ISBN:
(纸本)0889865280
Efficient forest management requires resource information at fine scale. Satellite sensed imagery is one of potential tools for collecting forest resource. In this paper, we developed an automated delineation of tree crown based on a series of image processing procedures and spectral angle using multi-spectral information. Above all, the proposed schemes can be applied to an open forest with complicated scenes. Experimental results reveal that the proposed methods can effectively identify and isolate the tree crown compared to traditional approach, and manual delineation. It also provides detailed forest resource information, and can be used as a reliable management tool for forest resources.
This paper proposes a novel efficient algorithm for model predictive control (MPC) of input-constrained linear systems. Based on the fact that the problem of MPC is reduced into the problem of calculating the solution...
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