中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Exploring spatiotemporal nonstationary effects of climate factors on hand, foot, and mouth disease using Bayesian Spatiotemporally Varying Coefficients (STVC) model in Sichuan, China 期刊论文  OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2019, 卷号: 648, 页码: 550-560
作者:  
Song, Chao;  Shi, Xun;  Bo, Yanchen;  Wang, Jinfeng;  Wang, Yong
  |  收藏  |  浏览/下载:75/0  |  提交时间:2019/05/23
Exploring spatiotemporal nonstationary effects of climate factors on hand, foot, and mouth disease using Bayesian Spatiotemporally Varying Coefficients (STVC) model in Sichuan, China 期刊论文  OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2019, 卷号: 648, 页码: 550-560
作者:  
Song, Chao;  Shi, Xun;  Bo, Yanchen;  Wang, Jinfeng;  Wang, Yong
  |  收藏  |  浏览/下载:25/0  |  提交时间:2019/05/23
Exploring spatiotemporal nonstationary effects of climate factors on hand, foot, and mouth disease using Bayesian Spatiotemporally Varying Coefficients (STVC) model in Sichuan, China 期刊论文  OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2019, 卷号: 648, 页码: 550-560
作者:  
Song, Chao;  Shi, Xun;  Bo, Yanchen;  Wang, Jinfeng;  Wang, Yong
  |  收藏  |  浏览/下载:46/0  |  提交时间:2019/05/23
Multi-focus image fusion algorithm based on adaptive PCNN and wavelet transform (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Wu Z.-G.; Wang M.-J.; Han G.-L.
收藏  |  浏览/下载:82/0  |  提交时间:2013/03/25
Being an efficient method of information fusion  image fusion has been used in many fields such as machine vision  medical diagnosis  military applications and remote sensing.In this paper  Pulse Coupled Neural Network (PCNN) is introduced in this research field for its interesting properties in image processing  including segmentation  target recognition et al.  and a novel algorithm based on PCNN and Wavelet Transform for Multi-focus image fusion is proposed. First  the two original images are decomposed by wavelet transform. Then  based on the PCNN  a fusion rule in the Wavelet domain is given. This algorithm uses the wavelet coefficient in each frequency domain as the linking strength  so that its value can be chosen adaptively. Wavelet coefficients map to the range of image gray-scale. The output threshold function attenuates to minimum gray over time. Then all pixels of image get the ignition. So  the output of PCNN in each iteration time is ignition wavelet coefficients of threshold strength in different time. At this moment  the sequences of ignition of wavelet coefficients represent ignition timing of each neuron. The ignition timing of PCNN in each neuron is mapped to corresponding image gray-scale range  which is a picture of ignition timing mapping. Then it can judge the targets in the neuron are obvious features or not obvious. The fusion coefficients are decided by the compare-selection operator with the firing time gradient maps and the fusion image is reconstructed by wavelet inverse transform. Furthermore  by this algorithm  the threshold adjusting constant is estimated by appointed iteration number. Furthermore  In order to sufficient reflect order of the firing time  the threshold adjusting constant is estimated by appointed iteration number. So after the iteration achieved  each of the wavelet coefficient is activated. In order to verify the effectiveness of proposed rules  the experiments upon Multi-focus image are done. Moreover  comparative results of evaluating fusion quality are listed. The experimental results show that the method can effectively enhance the edge details and improve the spatial resolution of the image. 2011 SPIE.  
Development situation and trend of domestic and international aerial mapping camera (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Mechatronic Science, Electric Engineering and Computer, MEC 2011, August 19, 2011 - August 22, 2011, Jilin, China
Ming L. W.; Xue L.; Hui C. X.; Jun L. Q.
收藏  |  浏览/下载:32/0  |  提交时间:2013/03/25
In the modern military affairs  especially in the complex field  the acquirement of real-time battlefield information and intelligence is getting more and more important  most of this work is completed by aerial reconnaissance or aerial mapping equipment. Aerial mapping camera  with time-sensitive and flexible features  is playing an increasingly important role in modern warfare. With the development of technology  aerial mapping camera has also gone through several generations  gradually from film-based type to transmission type. The theory and composition of domestic and international typical aerial mapping camera is introduced from the development situation and trend in this paper. Finally  with the domestic research status  the development trend of aerial mapping camera is proposed. 2011 IEEE.  
The effect of transparent film on its surface 3-D mapping by using vertical scanning white light interferometer (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China
Wu X.; Lei F.; Yatagai T.
收藏  |  浏览/下载:21/0  |  提交时间:2013/03/25
OR-Mapping的一种实现方法 期刊论文  OAI收割
计算机应用与软件, 2004, 卷号: 21, 期号: 2, 页码: 16-17,93
金松; 齐璇; 柳军飞
  |  收藏  |  浏览/下载:21/0  |  提交时间:2011/07/29