中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共7条,第1-7条 帮助

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Analysis of Nusselt Number Distribution in Case of a Strongly Heated, Horizontal Rod 期刊论文  OAI收割
2016
作者:  
Grunt, K., Zuraw, A. and Pietrowicz, S.
收藏  |  浏览/下载:22/0  |  提交时间:2017/05/27
Efficient human action recognition using accumulated motion image and support vector machines (EI CONFERENCE) 会议论文  OAI收割
International Workshop on Advanced Computational Intelligence and Intelligent Informatics, IWACIII 2011, November 19, 2011 - November 23, 2011, Suzhou, China
作者:  
Zhang X.;  Zhang J.;  Zhang J.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载:68/0  |  提交时间:2013/03/25
Vision-based human action recognition provides an advanced interface  and research in this field of human action recognition has been actively carried out. This paper describes a scheme for recognizing human actions from a video sequences. The proposed method is an extension of the Motion History Image(MHI) method based on the ordinal measure of accumulated motion  which is robust to variations of appearances. We define the accumulated motion image(AMI) using image differences firstly. Then the AMI of the video sequencesis resized to a MN regulation following the standard of training phases. Finally  we employ Support Vector Machine(SVM) as a classifier to distinguish the current activity in target video sequences. In a word  our proposed algorithm not only outperforms the state of art on public available KTH data set and Weizmann data set  but also proves practical to some real world applications  in addition  this method is computationally simple and able to achieve a satisfactory accuracy.  
Fast color-transfer-based image fusion method for merging infrared and visible images (EI CONFERENCE) 会议论文  OAI收割
Multisensor, Multisource Information Fusion: Architectures, Algorithms, and Applications 2010, April 7, 2010 - April 8, 2010, Orlando, FL, United states
作者:  
Xu S.
收藏  |  浏览/下载:28/0  |  提交时间:2013/03/25
We present a computationally efficient color image fusion algorithm for merging infrared and visible images. At the core of the proposed method is the color transfer technique based on the linear YCBCR space. The method directly uses the grayscale fused image and the difference signals of the input images to construct the source YCBCR components  then uses the statistical color transfer technique to form a color fused image that takes the target image's color characteristics. Two different strategies  which respectively employ the pixel averaging fusion scheme and the multiresolution fusion scheme as the grayscale image fusion solution  are proposed to fulfill different user needs. The simple strategy using the pixel averaging fusion scheme answers to a need of easy implementation and speed of use. And the complex strategy using the multiresolution fusion scheme answers to the high quality need of the fused products. In addition  we also describe some useful theories about color-transfer-based image fusion. Experimental results show that the proposed color image fusion algorithm can effectively produce a natural appearing "daytime-like" color fused image  and even using the pixel averaging fusion scheme to implement the grayscale fusion can also provide a pleasing result. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Focusing of electron flow in a bipolar graphene ribbon with different chiralities 期刊论文  OAI收割
PHYSICAL REVIEW B, 2010, 卷号: 81, 期号: 16
Xing, YX; Wang, J; Sun, QF
收藏  |  浏览/下载:26/0  |  提交时间:2013/09/17
Application of master-slave multi-communication system in pilotless airborne mapping equipment (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Instrumentation Science and Technology, September 15, 2009 - September 18, 2009, Shenyang, China
作者:  
Chen J.;  Wang W.;  Wang W.;  Zhang Y.
收藏  |  浏览/下载:29/0  |  提交时间:2013/03/25
This paper presents a master-slave multi-communication system designed with several micro-controllers used as master and slave controllers to set signal the lamp to realize point-to-point communication through the RS422 interface. By describing a typical example of this system and the blue print of hardware and the flowchart of software  the reliable work of the system has been proved. The circuits of system are very simple and practical  and they can be used to realize all the functions of a pilotless airborne mapping equipment. It also has a strong anti-jamming capability due to its balanced transfer scheme with single transmitter and multiple receivers. It is very efficient in protecting the integrity and correctness of transmitted and received signals  avoiding the collision of signals through the bus  satisfying the communication among several micro-controllers in a single system and forming a special communication network. 2009 SPIE.  
Nernst and Seebeck effects in a graphene nanoribbon 期刊论文  OAI收割
PHYSICAL REVIEW B, 2009, 卷号: 80, 期号: 23
Xing, YX; Sun, QF; Wang, J
收藏  |  浏览/下载:22/0  |  提交时间:2013/09/24
Nonequivalence of the step-like potentials between the tight-binding model and the Dirac equation description used in graphene study 期刊论文  OAI收割
Solid State Communications, 2008, 卷号: 148, 期号: 9-10, 页码: 455-458
C. L. Tang; Y. S. Zheng; G. S. Li and L. P. Li
收藏  |  浏览/下载:24/0  |  提交时间:2013/01/22