中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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基于GPU的小行星光学观测图像实时处理 期刊论文  OAI收割
光学精密工程, 2020, 卷号: 28, 期号: 11, 页码: 2527
作者:  
兀颖;  葛亮;  卢晓猛;  田健峰;  王汇娟
  |  收藏  |  浏览/下载:57/0  |  提交时间:2021/12/06
The initial errors that induce a significant "spring predictability barrier" for el nino events and their implications for target observation: results from an earth system model 期刊论文  iSwitch采集
Climate dynamics, 2016, 卷号: 46, 期号: 11-12, 页码: 3599-3615
作者:  
Duan, Wansuo;  Hu, Junya
收藏  |  浏览/下载:28/0  |  提交时间:2019/05/09
Target observations for improving initialization of high-impact ocean-atmospheric environmental events forecasting CNKI期刊论文  OAI收割
2015
作者:  
Mu Mu;  Wansuo Duan;  Dake Chen;  Weidong Yu
  |  收藏  |  浏览/下载:0/0  |  提交时间:2024/12/18
Target observations for improving initialization of high-impact ocean-atmospheric environmental events forecasting 期刊论文  OAI收割
NATIONAL SCIENCE REVIEW, 2015, 卷号: 2, 期号: 2, 页码: 226-236
作者:  
Mu, Mu;  Duan, Wansuo;  Chen, Dake;  Yu, Weidong
收藏  |  浏览/下载:30/0  |  提交时间:2015/07/27
A hybrid median filter for enhancing dim small point targets and its fast implementation (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Multimedia and Signal Processing, CMSP 2011, May 14, 2011 - May 15, 2011, Guilin, Guangxi, China
Yang Q.
收藏  |  浏览/下载:22/0  |  提交时间:2013/03/25
Weak stars and middle altitude orbit satellites or high altitude orbit satellites are presented as dim point targets in images of astronomical observation. They have low intensity and occupy few pixels in image. In most situations  the background of sky is always ununiform and there exists pulse noises. Thus results in targets submerging in background noises and low signal noise ratio (SNR). Median filter is an effective method for removing pulse noise. But it can blur image after modifying gray of non-noise pixels when image has low SNR. A hybrid median filter algorithm is proposed to process low SNR dim point targets image. The newly proposed method can suppress the pulse noises  also can increase target $SNR$ and does not add extra fake targets. The time complexity of median filter is O(N2)(N is the widow size) and is difficult to implement in hardware. For quasi real time application  a fast implementation of our hybrid median filter is proposed to reduce the time complexity to O(N). Experimental results show that the newly proposed algorithm is superior to ordinary median filter and fast median filter by comparing visual effect and performance. 2011 IEEE.  
A fast algorithm for solving cnop and associated target observation tests 期刊论文  iSwitch采集
Acta meteorologica sinica, 2009, 卷号: 23, 期号: 4, 页码: 387-402
作者:  
Wang Bin;  Tan Xiaowei
收藏  |  浏览/下载:35/0  |  提交时间:2019/05/10
Intersectant multi-target serial number fuzzy match by multi-parameters (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Wang Y.-J.
收藏  |  浏览/下载:166/0  |  提交时间:2013/03/25
In order to match the intersectant targets' tab when these objects separate  a kind of method that makes use of fuzzy multi-parameter to match targets is proposed. Multi-parameters include the forecasted position after targets separate  target speed  target size and geometry shape  and different parameter corresponds to different influence coefficient  evaluate the integrated matching coefficient that every observation target corresponds to forecasted target  and the corresponding relationship that matching coefficient is the biggest is the best matching result. In order to locate the position and speed of forecasted target  a new method of track forecast is proposed  firstly  Hough transform is used to the object's track before objects intersect  by this  the object's positions that the warp between forecasted location and observation location is large enough is eliminated  then least square method is used for track forecast by the remainder valid positions  and get hold of the forecasted position when objects separate. The experiment results show: when tracking the bulky objects which intersect and separate  the right identification probability of traditional least square method is 87.5%  and the right identification probability of fuzzy match by multi-parameters can attain 96%  the reliability improves in evidence.