Results 271 to 280 of about 30,698 (299)
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Virtual environment cultural training for operational readiness (VECTOR)
Virtual Reality, 2005Abstract : An immersive training system, called Virtual Environment Cultural Training for Operational Readiness Training Delivery (VECTOR-TD), was developed to provide scenario-based virtual environments to support cultural familiarization. This paper describes the cultural-training application, the architectural design, and the associated ...
John E. Deaton +8 more
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A vector perturbation with virtual users for multiuser MIMO downlink
2010 IEEE International Conference on Acoustics, Speech and Signal Processing, 2010In this paper, we put forth an approach pursuing performance gain of vector perturbation in multiuser MIMO downlink. Instead of achieving maximal sum capacity by employing maximum number of mobile users for communication, we sacrifice small part of them for improving the performance of ones participating communication.
Byungju Lee, Byonghyo Shim
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A virtual image cryptosystem based upon vector quantization
IEEE Transactions on Image Processing, 1998We propose a new image cryptosystem to protect image data. It encrypts the original image into another virtual image. Since both original and virtual images are significant, our new cryptosystem can confuse illegal users. Besides the camouflage, this new cryptosystem has three other benefits.
Tung-Shou Chen +2 more
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Vectors of the Virtual in New Media Theory
L'Esprit Créateur, 2003nature of these activities, altering what and how we read and write, as well as producing deleterious effects on our very language. Thus, in The Gutenberg Elegies literary critic Sven Birkerts argues that the electronic millenium will inevitably bring about an erosion of language, the complexities and expressive capacities of the language we now use ...
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Symbolic Representation of Vector Map in Virtual Geographic Environment
2012Those basic geometric graphs such as lines and polygons are the main representations used by 3D rendering methods of vector map at present. It is so simple that strictly limited map feature information has been transferred. Consequently, an extended rendering method based on the shadow volume stencil theory is presented, which allows real time ...
Xuefeng Cao, Gang Wan
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Rendering of Vector Data on 3D Virtual Landscapes
2009 First International Conference on Information Science and Engineering, 2009In geographical information systems (GIS), vector data has important applications in the analysis and management of virtual landscapes. Therefore, methods that allow combined visualization of terrain and geo-spatial vector data are required. Such methods have to adapt the vector data to the terrain surface and to ensure a precise and efficient mapping.
Xianghong Wang, Jiping Liu, Junfang Bi
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Vector Migration of Virtual Source VSP Data
70th EAGE Conference and Exhibition incorporating SPE EUROPEC 2008, 2008A walkaway VSP survey is carried out with receivers located in a borehole under a salt overhang. Redatuming of the multicomponent data to virtual sources in the borehole followed by vector Kirchhoff migration using a simple velocity model provides an accurate image of the salt face.
M. Lou, F. Doherty, J. Jackson
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Virtual Think-Tank on AAV vectors
Cell and Gene Therapy Insights, 2022Chris Lorenz +3 more
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Predictive Current Control for Six-Phase PMSM Motor With Multi-Step Synthesis Based Virtual Vectors
IEEE Transactions on Energy Conversion, 2023Yixiao Luo, Shuangxia Niu
exaly