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8条,第1-8条 帮助

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LARGE N LIMIT OF THE O(N) LINEAR SIGMA MODEL VIA STOCHASTIC QUANTIZATION 期刊论文  OAI收割
ANNALS OF PROBABILITY, 2022, 卷号: 50, 期号: 1, 页码: 131-202
作者:  
Shen, Hao;  Smith, Scott A.;  Zhu, Rongchan;  Zhu, Xiangchan
  |  收藏  |  浏览/下载:28/0  |  提交时间:2022/04/29
Exact solutions of the generalized two-photon and two-qubit Rabi models 期刊论文  OAI收割
EUROPEAN PHYSICAL JOURNAL D, 2013, 卷号: 67, 期号: 8, 页码: 162
Peng, J; Ren, ZZ; Guo, GJ; Ju, GX; Guo, XY
收藏  |  浏览/下载:30/0  |  提交时间:2014/04/25
Integrability and solvability of the simplified two-qubit Rabi model 期刊论文  OAI收割
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 2012, 卷号: 45, 期号: 36, 页码: 365302
Peng, J; Ren, ZZ; Guo, GJ; Ju, GX
收藏  |  浏览/下载:25/0  |  提交时间:2014/04/25
Building descriptive and discriminative visual codebook for large-scale image applications 期刊论文  OAI收割
MULTIMEDIA TOOLS AND APPLICATIONS, 2011, 卷号: 51, 期号: 2, 页码: 441-477
作者:  
Tian, Qi;  Zhang, Shiliang;  Zhou, Wengang;  Ji, Rongrong;  Ni, Bingbing
  |  收藏  |  浏览/下载:29/0  |  提交时间:2019/12/16
基于梯度下降的分类学习-BN,LVQ,AdaBoost 学位论文  OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2009
作者:  
靳小波
收藏  |  浏览/下载:68/0  |  提交时间:2015/09/02
Space camera imaging gain in-orbit adjusting strategy (EI CONFERENCE) 会议论文  OAI收割
2009 2nd International Conference on Intelligent Computing Technology and Automation, ICICTA 2009, October 10, 2009 - October 11, 2009, Changsha, Hunan, China
作者:  
Wang J.;  He X.
收藏  |  浏览/下载:17/0  |  提交时间:2013/03/25
A Multi-Step Gain Adjusting Strategy (MSGAS) of space camera was proposed  which was used to get higher SNR (Signal-Noise Rate) image. When the space camera working in poor light condition  the CCD signal was so weak that it's difficult to get a clear image  to reduce the quantization noise and improve the SNR  we must amplify the CCD signal first and then quantize. The MSGAS was achieved by adjusting the gain of the CCD (Charge Couple Device) signal processor step by step  the upper limit and lower limit were set  if the MDN (Mean Digital Number) of a fixed length image data was not between the lower and upper limit  the gain was adjusted step by step. In the experiment  the upper limit  lower limit and the step were set  and the result of the experiment showed that MSGAS was robust and SNR was improved from 28 to 39. 2009 IEEE.  
A segment detection method based on improved Hough transform (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Yao Z.-J.
收藏  |  浏览/下载:27/0  |  提交时间:2013/03/25
Hough transform is recognized as a powerful tool in shape analysis which gives good results even in the presence of noise and the disconnection of edge. However  3. applying the standard Hough transform equation to every point of the input image edge  4. according to the local threshold  6. merging the segments whose extreme points are near. Experiment results show the approach not only can recognize regular geometric object but also can extract the segment feature of real targets in complex environment. So the proposed method can be used in the target detection of complicated scenes  traditional Hough transform can only detect the lines  2. quantizing the parameter space  and extracting a group of maximums according to the global threshold  eliminating spurious peaks which are caused by the spreading effects  and will improve the precision of tracking.  cannot give the endpoints and length of the line segments and it is vulnerable to the quantization errors. Based on the analysis of its limitations  Hough transform has been improved in order to detect line segment feature of targets. The algorithm aims to avoid the loss of spatial information  as well as to eliminate the spurious peaks and fix on the line segments endpoints accurately  5. fixing on the endpoints of the segments according to the dynamic clustering rule  which can expediently be used for the description and classification of regular objects. The method consists of 6 steps: 1. setting up the image  parameter and line-segment spaces  
Quantizing the de Sitter space-times 期刊论文  OAI收割
PHYSICS LETTERS B, 2004, 卷号: 602, 期号: 3-4, 页码: 226-230
作者:  
Xiang, L;  Shen, YG
收藏  |  浏览/下载:15/0  |  提交时间:2010/11/08