中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共4条，第1-4条

帮助

条数/页：排序方式：
	Moving target detection and classification using spiking neural networks (EI CONFERENCE) 会议论文 OAI收割 2nd Sino-Foreign-Interchange Workshop on Intelligent Science and Intelligent Data Engineering, IScIDE 2011, October 23, 2011 - October 25, 2011, Xi'an, China 作者: Sun H.; Wang Z.; Wang Z.; Wang P.; Sun H. 收藏 \| 浏览/下载：43/0 \| 提交时间：2013/03/25 We proposed a spiking neural network (SNN) to detect moving target in video streams and classify them into real categorization in this paper. The proposed SNN uses spike trains to encoding information such as the gray value of pixels or feature parameters of the target detects moving target by simulating the visual cortex for motion detection in biological system with axonal delays and classify them into different categorizations according to their distance to categorization's centers found by Hebb learning rule. The experimental results show that the proposed SNN is promising in intelligence computation and applicable in general visual surveillance system. 2012 Springer-Verlag.
	Modulation transfer function in seeker camera limits resulting from missile flutter caused by aerodynamic force (EI CONFERENCE) 会议论文 OAI收割 2010 2nd International Conference on Industrial Mechatronics and Automation, ICIMA 2010, May 30, 2010 - May 31, 2010, Wuhan, China 作者: Zhang X.; Zhang X.; Zhang X. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 The imaging quality of seeker in flight mode has been evaluated through analyzing the effects of missile flutter on optical modulation transfer function (MTF) of the optical system. Firstly the data of transverse vibration has been processed to eliminate the trend term caused by the trajectory then obtained the displacement with two times trapezoidal integration. For the side rotation the high frequency noise interference in the data has been filtered by using five-point moving average method. Took this model as the quivering rule between the object and the image and then analyzed the effects of the transverse vibration and the side rotation on imaging quality through MTF. By calculation the r.m.s value of the image motion caused by missile transverse vibration is 0.026mm and the side rotation angle is 0.0044 . Through the establishment of two modulation transfer functions (MTF) of image random vibration and linear vibration the results show that the image quality had declined and the effect of transverse vibration on image quality is obvious. Through improving the rigidity of the missile and selection of small focal length optical system and shorten the time of exposure can improve the imaging quality of the seeker. 2010 IEEE.
	Features and states of microscopic particles in nonlinear quantum-mechanics systems 期刊论文 OAI收割 Frontiers of Physics in China, 2008, 卷号: 3, 期号: 2, 页码: 205-237 X. F. Pang 收藏 \| 浏览/下载：20/0 \| 提交时间：2012/04/13 microscopic particle nonlinear systems nonlinear quantum mechanics basic principle motion rule dynamic property nonlinear Schrodinger equation
	a novel method to recognize complex dynamic gesture by combining hmm and fnn models 会议论文 OAI收割 IEEE Symposium on Computational Intelligence in Image and Signal Processing, Honolulu, HI, APR 01-05, Wang Xiying; Dai Guozhong \| 收藏 \| 浏览/下载：24/0 \| 提交时间：2011/06/29 2D motion trajectory Z-axis direction movement complex dynamic gesture recognition dynamic gesture decomposition fuzzy inference fuzzy membership fuzzy neural network fuzzy rule modeling gesture feature gesture-based human-computer interaction hidden Mark