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浏览/检索结果: 共13条，第1-10条 帮助

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A fused LASSO operator for fast 3D magnetic particle imaging reconstruction 期刊论文  OAI收割
Physics in Medicine & Biology, 2024, 卷号: 69, 期号: 13
作者:  He,Jie;  Li,Yimeng;  Zhang,Peng;  Hui,Hui;  Tian,Jie
  |  收藏  |  浏览/下载：2/0  |  提交时间：2024/07/22
A numerical method for two-dimensional multi-term time-space fractional nonlinear diffusion-wave equations 期刊论文  OAI收割
APPLIED NUMERICAL MATHEMATICS, 2021, 卷号: 159, 页码: 159-173
作者:  Huang, Jianfei;  Zhang, Jingna;  Arshad, Sadia;  Tang, Yifa
  |  收藏  |  浏览/下载：33/0  |  提交时间：2021/01/14
基于FREAK特征的快速景象匹配 期刊论文  OAI收割
电子测量与仪器学报, 2015, 期号: 02, 页码: 204-212
作者:  王灿进;  孙涛;  陈娟
收藏  |  浏览/下载：22/0  |  提交时间：2016/07/06
一种新的快速局部不变特征算法 期刊论文  OAI收割
红外与激光工程, 2014, 期号: 6, 页码: 2013-2020
作者:  孙涛
收藏  |  浏览/下载：18/0  |  提交时间：2015/04/17
基于快速视网膜关键点局部不变特征的激光主动成像目标识别 期刊论文  OAI收割
中国激光, 2014, 期号: 3, 页码: 199-205
作者:  孙涛
收藏  |  浏览/下载：27/0  |  提交时间：2015/04/17
A fast explicit finite difference method for determination of wellhead injection pressure 期刊论文  OAI收割
JOURNAL OF CENTRAL SOUTH UNIVERSITY, 2012, 卷号: 19, 期号: 11, 页码: 3266-3272
作者:  Bai Bing;  Li Xiao-chun;  Liu Ming-ze;  Shi Lu;  Li Qi
  |  收藏  |  浏览/下载：19/0  |  提交时间：2018/06/05
Determination of propofol UDP-glucuronosyltransferase (UGT) activities in hepatic microsomes from different species by UFLC-ESI-MS 期刊论文  OAI收割
journal of pharmaceutical and biomedical analysis, 2011, 卷号: 54, 期号: 1, 页码: 236-241
作者:  Liang, Si-Cheng;  Ge, Guang-Bo;  Liu, Hui-Xin;  Shang, Hai-Tao;  Wei, Hong
收藏  |  浏览/下载：25/0  |  提交时间：2015/11/12
A nonlinear image enhancement algorithm based on partial differential equations (EI CONFERENCE) 会议论文  OAI收割
2010 IEEE 10th International Conference on Signal Processing, ICSP2010, October 24, 2010 - October 28, 2010, Beijing, China
Han X.; Jian Z.
收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25
Image enhancement and image de-noising have being the important research contents of image academic and engineering field  and the partial differential equations have been widely applied to computer vision. The paper applies the thoughts of partial differential equations  puts forward a new improved method of image enhancement. This method can enhance not only the dark images but also the bright images  making the details hidden in the dark background and the bright background very clear. The application scope is wider  and the visual effect is better. This paper uses the finite difference method to discrete the partial differential equations  and combines with the heat equation. It calculates simple  runs fast  and provides a guarantee for real-time video image enhancement processing. 2010 IEEE.  
Graph fitting test method for the interpolation error of Moire fringe (EI CONFERENCE) 会议论文  OAI收割
9th International Conference on Electronic Measurement and Instruments, ICEMI 2009, August 16, 2009 - August 19, 2009, Beijing, China
作者:  Sun Y.;  Sun Y.
收藏  |  浏览/下载：30/0  |  提交时间：2013/03/25
In order to realize the fast test for the interpolation error  the graph fitting test method for the interpolation error of Moire fringe is put forward in this paper. Firstly  the triangular wave Moire fringe photoelectric signal of the encoder whose phase difference is 90 are sampled to get the Lissajous graph of the two signals. Secondly  the single wave represented by the founded subsection function is used to fit the practical Moire fringe Lissajous graph. Then  the fitting result is tested to verify whether it satisfies the accuracy requirement. Lastly  the founded subsection function instead of the practical wave function is used to calculate the interpolation error. Using the graph fitting method to sample the Moire fringe single of 15-bits photoelectric encoder to get the interpolation error curve  the tested maximum interpolation error is 70" and the minimum error is - 69". Comparing with the interpolation error which is received from traditional test method  the change trend of the interpolation error curve is similar  and peak-peak value is almost equality. The results of experiment indicate that: the equipment is convenient and the examination method is efficient and feasible. The measure speed is fast and the manifestation result is intuitionistic. The system can be used in the working field. The method can avoid the speed influence and realize the dynamic interpolation error measure  which is significant for the research of encoder's dynamic accuracy characteristics. 2009 IEEE.  
Real-time matching algorithm of navigation image based on corner detection (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Imaging Detectors and Applications, June 17, 2009 - June 19, 2009, Beijing, China
作者:  Zhang T.
收藏  |  浏览/下载：45/0  |  提交时间：2013/03/25
In order to meet requirement of real-time and high accuracy in image matching aided navigation  SSDA algorithm is used to match remote sensing image and template image coarsely  a fast and effective algorithm of remote sensing image matching based on corner detection is put forward. With the combination of rough and fine match  when the matching result is bigger than one to count absolute value sum of energy difference of characteristic point energy to realize fine match of remote sensing image and template image to locate the position of template image in remote sensing image accurately. Simulation experiment proves that the matching of a remote sensing image resolution of 1018*1530 and a template image resolution of 150*90 can be fulfilled within 2.392 second  wavelet transform is used to acquire low frequency component to realize image compression to decrease calculation work and increase matching speed. Harris corner detection algorithm is used to detect corner of remote sensing image and template image and energy of every corner is calculated  the algorithm is robust and effective  real time image navigation can be achieved. 2009 SPIE.