Architectural modeling has advised many domain-specific notations, where as each one focus on a specific application domain, analysis type, or modeling environment. In IT industry, a system architecture and structured...
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Sponsored Search Auctions (SSA) are major contributors to the search engine's revenue because of their highly targeted customers and all time available on-line arenas. The Involvement of search users induces a fai...
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Vehicular ad hoc networks (VANETs) are attracting the interest of a great number of academicians and industrials. One of the most interesting features is the possibility to use a spontaneous and inexpensive wireless a...
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This paper introduces the application method of a measuring system for visual judgment ability of drivers in real three-dimension space (3D) based on the visual attention theory. The measuring system can simulate the ...
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ISBN:
(纸本)9783037852828
This paper introduces the application method of a measuring system for visual judgment ability of drivers in real three-dimension space (3D) based on the visual attention theory. The measuring system can simulate the traffic environment and driving conditions, and is made up of five parts, signal display system, data recording system, traffic environment simulation system, experimental seat andcomputer control system. It can control the peripheral environment illuminance and the appearance of stimulus at the target locations, and change the colour of stimulus. The paper demonstrated that the measuring system can be used to examine the reaction time and judgment response of drivers in real three-dimension space during driving, and show that the response ability training for visual attention of drivers can improve the vision judgment ability.
Distributed Real-time Embedded (DRE) systems are facing great challenges in networked, unpredictable and especially unsecured environments. In such systems, there is a strong need to enforce security on distributed co...
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Cross-Organizational interoperability and coordination are core issues to Virtual Organization (VO) researches. We propose a model of VOs in which VO related concepts are modeled in an extension of the OWL-S service o...
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The pressure information collection of bridge buildings is important to monitor the healthy status of the bridge buildings. For the defects of traditional pressure information collection system, the paper designs a sy...
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The application of cross-correlation algorithm should be preceded by the calibration system validating the precision and accuracy of the algorithm. Selected adjacent two images from the video stream of the moving targ...
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ISBN:
(纸本)9783642352850
The application of cross-correlation algorithm should be preceded by the calibration system validating the precision and accuracy of the algorithm. Selected adjacent two images from the video stream of the moving target, and calculate the displacement of the moving target, and then the vector information can be obtained according to the time interval set in the video capture rate. Cross-correlation algorithm in order to reduce computation, the image on the equivalent land is divided into several regions, the sub-regions of the same location is calculated. The selection of the size of the sub-regions will affect the accuracy of measurement results, so the image calibration system using a variety of images to find the association between the size of the sub-regions and the intensity of the images. This will reduce the generation of error, and founded a basement for the subsequent processing. Because the selection of the sub-regions size will affect the accuracy of measurement results, the image calibration system testing images with variety intensities to find the association between the size of the sub-regions and the image intensities. This will reduce the generation of error, and lay a good foundation for the subsequent processing. The development of the image calibration system is developed under Windows, using C/C++ programming languages, and the openCV open source image library.
Based on analyzing current methods of acquiring point clouds data in reversing engineering, considering the features of structure light scanning and binocular stereovision, we proposed a composite measuring method bas...
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ISBN:
(纸本)9783037853269
Based on analyzing current methods of acquiring point clouds data in reversing engineering, considering the features of structure light scanning and binocular stereovision, we proposed a composite measuring method based on vision technology, which combines the advantages of the two measurement methods in together, and established the measuring system. The greatest advantage of this method is that the edge data were obtained by binocular vision technology, and the internal data were obtained by Structure light method. In binocular vision, stereo matching was realized with the combination of epipolar constraint, corner feature matching and area matching, which could improve location precision and matching speed of feature point. An application example shows the composite measuring method is feasible.
Stuxnet attack on critical infrastructures is considered as paradigm shift in malware attack approach. The complexity and sophistication involved in this attack make it unique. Attacking approach of the malware, on co...
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