中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Study on supper resolution reconstruction based on staggered arrays (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
Yuan Z.; Xing Z.; Guang J.
收藏  |  浏览/下载:33/0  |  提交时间:2013/03/25
The image resolution can be improved without increasing the requirement to optical imaging systems' parameters and decreasing the size of CCD pixel by staggered arrays technology  which arranges several CCDs in a specific mode. In this paper  an image super resolution method of improving the image resolution for 1.5 times both in two directions by 4 linear arrays staggered based on this technology is presented  which avoids the large computation in a single time by use of circulation method. This method is proved effective by the digital simulation  and a simulated experiment platform is constructed to test its feasibility. The image resolution is improved for 1.42 times of the unreconstructed image according to the imaging experiment of resolution chart  which is closed to 1.5 times in ideal case. And also  the reconstructed and unreconstructed images are evaluated by the image information entropy  which proves that the reconstructed image contains more information. 2011 IEEE.  
Research of programming about the level flight of aircraft (EI CONFERENCE) 会议论文  OAI收割
2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China
作者:  
Lijiang
收藏  |  浏览/下载:33/0  |  提交时间:2013/03/25
In order to carries on the plan and the control to aircraft level flight  then obtain that the factors control the level route are the route position and the radius of turn  finally carries on the software simulation using this algorithm  the attitude and the route has been analyzed. First obtain that the factors control the level attitude are the roll angle and the yaw angle  and infers the algorithm of flight route  according to the attitude and the route restraint  and infers the computation algorithm of attitude  produce shortest aircraft level flight road map which through the giving route position on the software surface. According to this algorithm  it may control and plan the aircraft level flight  through to limit of the aircraft security attitude and the route position. 2010 IEEE.  
A design of high-speed and low-consume parallel grouping RS code and simulation (EI CONFERENCE) 会议论文  OAI收割
2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China
Chen C.; Jin G.
收藏  |  浏览/下载:36/0  |  提交时间:2013/03/25
RS code is a linear error correction codes with better error correction capability  is widely used in different kinds of occasions for communications or data storage. But for its high difficulty of coding and decoding algorithm and low throughput  optimization RS algorithm is always studied as one of the focus in the error-correction field. A new coding method  parallel coding and decoding data into groups in lower step finite field for avoiding complex matrix iteration and Chien search computation  is proposed in this paper. It is proved that the coding and decoding throughput of the parallel grouping RS coder is increased and the hardware complexity is reduced with changeless error-correction capability from the simulation results using ModelSim SE 6.0 and synthetic results using ISE 9.11. 2010 IEEE.  
Blind channel estimation of MIMO-OFDM based on FDPM (EI CONFERENCE) 会议论文  OAI收割
5th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2009, September 24, 2009 - September 26, 2009, Beijing, China
Gang W.; Ming Z.; Hua C.
收藏  |  浏览/下载:27/0  |  提交时间:2013/03/25
Modeling of satellite borne TDI CCD pitching imaging image motion velocity vector (EI CONFERENCE) 会议论文  OAI收割
2009 IEEE International Conference on Automation and Logistics, ICAL 2009, August 5, 2009 - August 7, 2009, Shenyang, China
作者:  
Zhang L.;  Li S.;  Zhang L.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
In order to obtain three-dimensional observation effect with single satellite borne time delay and integrate charge coupled device (TDI-CCD)  pitching imaging is required. More accurate real-time image motion velocity vector computational model of space camera is also necessary to make the imaging perfect. Imaging motion velocity vector computation model must be set up on image plane at pitching imaging. According to the geometric relationship between the pitching imaging space camera and the Earth's rotation motion  satellite borne TDI CCD pitching imaging motion velocity vector model is derived by mapping the ground speed to the image plane and using coordinate transformation method. The numerical simulation results show that the image velocity model can reduce deviation angle error about 33' and about 30% image motion speed error compared to traditional ground velocity model. 2009 IEEE.  
Numerical simulation of heat transfer and fluid flow in a DC plasma-arc reactor for the thermal treatment of hazardous wastes 会议论文  OAI收割
Joint Conference: International Thermal Treatment Technologies (IT3) and Hazardous Waste Combustors (HWC), Cincinnati, OH, United states, May 18, 2009 - May 21, 2009
作者:  
Deng J(邓晶);  Li YJ(李要建);  Wang R(王蕊);  Tian JG(田君国);  Xu YX(徐永香)
收藏  |  浏览/下载:34/0  |  提交时间:2017/07/14
Adaptive Image Segmentation based on Fast Thresholding and Image Merging (EI CONFERENCE) 会议论文  OAI收割
16th International Conference on Artificial Reality and Telexistence - Workshops, ICAT 2006, November 29, 2006 - December 1, 2006, Hangzhou, China
作者:  
Zhang Y.;  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.
收藏  |  浏览/下载:24/0  |  提交时间:2013/03/25
Image segmentation is the first essential and important step of low level vision. This paper proposes a novel algorithm for adaptive image segmentation  it can be applied in many conditions  based on thresholding technique and segments merging according to their characteristics combine with spatial position. Our earlier work of getting the entire information of the histogram could help choose the multiple thresholds. However  including complex target segmented. We describe the algorithm in detail and perform simulation experiments. The computation based on pixels can fully parallel processing to save time. 2006 IEEE.  not all the peaks of the histogram correspond to obvious structural unit in the image. Spatial information must be involved. This paper also suggests subjoining segments matching for video image tracking. They will give great help to image segmentation. The proposed algorithm can meet the real-time requirement and lead to higher segmentation accuracy  some types of texture can also be segmented well  
Theoretical studies of solid-solid interfaces 期刊论文  OAI收割
Current Opinion in Solid State & Materials Science, 2006, 卷号: 10, 期号: 1, 页码: 26-32
S. Q. Wang; H. Q. Ye
收藏  |  浏览/下载:45/0  |  提交时间:2012/04/14