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浏览/检索结果: 共9条,第1-9条 帮助

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Chaotic Orthogonal Composite Sequence for 5G NR Time Service Signal Capture Algorithm 期刊论文  OAI收割
ELECTRONICS, 2024, 卷号: 13, 期号: 13, 页码: 16
作者:  
Mao, Zhiwei;  Wu, Huabing;  Zhao, Dangli;  Jiang, Xingbo
  |  收藏  |  浏览/下载:8/0  |  提交时间:2025/04/03
Phylogenomics and the flowering plant tree of life 期刊论文  OAI收割
JOURNAL OF INTEGRATIVE PLANT BIOLOGY, 2022
作者:  
Guo, Cen;  Luo, Yang;  Gao, Lian-Ming;  Yi, Ting-Shuang;  Li, Hong-Tao
  |  收藏  |  浏览/下载:10/0  |  提交时间:2024/08/21
Phylogeny and reclassification of Aconitum subgenus Lycoctonum (Ranunculaceae) 期刊论文  OAI收割
PLOS ONE, 2017, 卷号: 12, 期号: 1, 页码: e0171038
Hong, Yu; Luo, Yan; Gao, Qi
收藏  |  浏览/下载:24/0  |  提交时间:2017/05/16
The Compositae Tree of Life in the age of phylogenomics 期刊论文  OAI收割
JOURNAL OF SYSTEMATICS AND EVOLUTION, 2017, 卷号: 55, 期号: 4, 页码: 405-410
作者:  
Mandel, Jennifer R.;  Barker, Michael S.;  Bayer, Randall J.;  Dikow, Rebecca B.;  Gao, Tian-Gang
  |  收藏  |  浏览/下载:28/0  |  提交时间:2022/03/28
Systematics of the genus Salweenia (Leguminosae) from Southwest China with discovery of a second species 期刊论文  OAI收割
TAXON, 2011, 卷号: 60, 期号: 5, 页码: 1366-1374
作者:  
Yue, Xue-Kun;  Yue, Ji-Pei;  Yang, Li-Er;  Li, Zhi-Min;  Sun, Hang
  |  收藏  |  浏览/下载:16/0  |  提交时间:2012/03/16
The new approach for infrared target tracking based on the particle filter algorithm (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者:  
Sun H.;  Han H.-X.;  Sun H.
收藏  |  浏览/下载:56/0  |  提交时间:2013/03/25
Target tracking on the complex background in the infrared image sequence is hot research field. It provides the important basis in some fields such as video monitoring  precision  and video compression human-computer interaction. As a typical algorithms in the target tracking framework based on filtering and data connection  the particle filter with non-parameter estimation characteristic have ability to deal with nonlinear and non-Gaussian problems so it were widely used. There are various forms of density in the particle filter algorithm to make it valid when target occlusion occurred or recover tracking back from failure in track procedure  but in order to capture the change of the state space  it need a certain amount of particles to ensure samples is enough  and this number will increase in accompany with dimension and increase exponentially  this led to the increased amount of calculation is presented. In this paper particle filter algorithm and the Mean shift will be combined. Aiming at deficiencies of the classic mean shift Tracking algorithm easily trapped into local minima and Unable to get global optimal under the complex background. From these two perspectives that "adaptive multiple information fusion" and "with particle filter framework combining"  we expand the classic Mean Shift tracking framework.Based on the previous perspective  we proposed an improved Mean Shift infrared target tracking algorithm based on multiple information fusion. In the analysis of the infrared characteristics of target basis  Algorithm firstly extracted target gray and edge character and Proposed to guide the above two characteristics by the moving of the target information thus we can get new sports guide grayscale characteristics and motion guide border feature. Then proposes a new adaptive fusion mechanism  used these two new information adaptive to integrate into the Mean Shift tracking framework. Finally we designed a kind of automatic target model updating strategy to further improve tracking performance. Experimental results show that this algorithm can compensate shortcoming of the particle filter has too much computation  and can effectively overcome the fault that mean shift is easy to fall into local extreme value instead of global maximum value.Last because of the gray and fusion target motion information  this approach also inhibit interference from the background  ultimately improve the stability and the real-time of the target track. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).  
Station mode for attitude determination of small-multi-target with high speed (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on E-Product E-Service and E-Entertainment, ICEEE2010, November 7, 2010 - November 9, 2010, Henan, China
作者:  
Wang J.;  Zhao L.;  Li M.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
A key problem of attitude measurement of small-multi-target with high speed is how to decide the optimum of the CMOS stations. A multi-CMOS station mode is designed in this paper  multiple CMOS videos were placed on two parallel sides in measurement system  every two CMOS form an intersection viewing field  multiple viewing field join to cover shooting range  which can augment Effective Viewing Field(EVF)  increase capture ratio of objects with high speed and measurement precision of small objects. When an object passes through the joint area  it will be imaged separately on each CMOS focal plane. Multiple CMOS videos were triggered synchronously  a sequence of image information was extracted  the target attitude was confirmed by digital image processing technology. The merit of station mode is low cost  large measurement scope  extending freely and so on. 2010 IEEE.  
Software radio research of spread spectrum communication system (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Computer Application and System Modeling, ICCASM 2010, October 22, 2010 - October 24, 2010, Shanxi, Taiyuan, China
Tan Z.-J.; Shi Y.; Zhong Z.-J.
收藏  |  浏览/下载:19/0  |  提交时间:2013/03/25
High-speed CCD camera system for the measurement of flight time of cannonballs (EI CONFERENCE) 会议论文  OAI收割
2005 Beijing International Conference on Imaging: Technology and Applications for the 21st Century, May 23, 2005 - May 26, 2005, Beijing, China
作者:  
Gong Y.
收藏  |  浏览/下载:24/0  |  提交时间:2013/03/25