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Reconstruction for Fluorescence Molecular Tomography via Adaptive Group Orthogonal Matching Pursuit 期刊论文  OAI收割
IEEE Transactions on Biomedical Engineering, 2020, 期号: 10.1109/TBME.2019.2963815, 页码: 1-12
作者:  
Lingxin Kong;  Yu An;  Qian Liang;  Lin Yin;  Yang Du
  |  收藏  |  浏览/下载:20/0  |  提交时间:2020/06/03
A Novel privacy-preserving group matching scheme in social networks 会议论文  OAI收割
15th International Conference on Web-Age Information Management, WAIM 2014, Macau, China, June 16, 2014 - June 18, 2014
Chi, Jialin (1); Lv, Zhiquan (1); Zhang, Min (1); Li, Hao (1); Hong, Cheng (1); Feng, Dengguo (1)
  |  收藏  |  浏览/下载:28/0  |  提交时间:2014/12/16
Study on dynamic imaging on TDI CCD optical remote sensor of push-broom technology (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者:  
Liu L.;  Ren J.-Y.;  Liu L.;  Gao M.-H.
收藏  |  浏览/下载:21/0  |  提交时间:2013/03/25
A set special detecting system is proposed based on TDICCD push-broom technology applying in dynamic imaging detecting experiment of space optics remote sensor. In the system  In the course of detecting  push-broom movement of the satellite is simulated through using double supporting U structure precision rotary platform with remote sensor by angular speed 0.555/s  regard Nyquist frequency target as detecting aim  within the range of 5 and control precision on steady speed achieves 0.3%  in order to solve matching uncertainty between the CCD pixel and the vertical target strip image when the remote sensor does push-broom  make matching simplify  enhance the measurement result the accuracy. So the tolerance a/n arithmetic progression gap target strip is joined in each group of rectangular vertical group target strip. The remote sensor obtains in vertical  the level and 45 the direction 0 fields of view  0.86 the field of view Nyquist frequency target strip image after detected  a group target strip which can precision matching to TDICCD pixel at least can be obtained through analysis and dealing with 0.86 field of view's target strip image. The experiment not only verifies the detecting system's feasibility but simultaneously verifies whether to have the high quality dynamic imaging quality when TDICCD push-broom technology is adopted on the remote sensor developed. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Affine object recognition and affine parameters estimation based on covariant matrix (EI CONFERENCE) 会议论文  OAI收割
2008 International Symposium on Information Science and Engineering, ISISE 2008, December 20, 2008 - December 22, 2008, Shanghai, China
作者:  
Wang Y.;  Wang Y.;  Wang Y.
收藏  |  浏览/下载:133/0  |  提交时间:2013/03/25
A new method of affine object recognition and affine parameters estimation is presented. For a real-time image and a group of templates  in addition  firstly  on the basis of correct recognition  we segment the object regions in them and compute their covariant matrices. Secondly  it can estimate affine parameters exactly  normalize the ellipse regions defined by covariant matrices to circle regions to get rotational invariants  and the estimated error is within 3%. 2008 IEEE.  and compute the similarity function value between rotational invariants of real-time image and every template respectively. Then compare the values with threshold set in advance  if more than one value is larger than threshold  take the corresponding templates as candidates  and compute affine matrix between real-time image and every candidate. Finally  transform the realtime image with every affine matrix and match the result with corresponding candidate by classical matching methods. Experimental results show that the presented method is robust to illumination  with low computational complexity  and it can realize recognition of different affine objects  
Nonnegative time-frequency distributions for parametric time-frequency representations using semi-affine transformation group 期刊论文  OAI收割
SIGNAL PROCESSING, 2005, 卷号: 85, 期号: 9, 页码: 1813-1826
作者:  
Zou, HX;  Wang, DJ;  Zhang, XD;  Li, YD
收藏  |  浏览/下载:25/0  |  提交时间:2015/11/06
Study of noncollinear quasi-phase matching optical parametric amplification with group-velocity matching based on periodically poled crystals 期刊论文  OAI收割
jpn. j. appl. phys. part 1, 2005, 卷号: 44, 期号: 8, 页码: 6029, 6034
Zhao BZ; 梁晓燕; 冷雨欣; Wang C; Du J; 李儒新; 徐至展
收藏  |  浏览/下载:1361/179  |  提交时间:2009/09/18