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浏览/检索结果: 共9条,第1-9条 帮助

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Research and Simulation of Motion Planning for Underwater Hexapod Robot Based on Improved Artificial Potential Method 会议论文  OAI收割
Virtual, Beijing, China, April 16-18, 2021
作者:  
Sun YZ(孙英哲);  Zhang QF(张奇峰);  Zhang AQ(张艾群)
  |  收藏  |  浏览/下载:34/0  |  提交时间:2021/06/27
Nonlinear dynamics of fires in Africa over recent decades controlled by precipitation 期刊论文  OAI收割
GLOBAL CHANGE BIOLOGY, 2020, 卷号: 26, 期号: 8, 页码: 4495-4505
作者:  
Wei, Fangli;  Wang, Shuai;  Fu, Bojie;  Brandt, Martin;  Pan, Naiqing
  |  收藏  |  浏览/下载:41/0  |  提交时间:2021/08/31
The Application of Numerical Manifold Method to the Turning Point Singularity Problem in Seepage 会议论文  OAI收割
Guangzhou, PEOPLES R CHINA, MAR 25-25, 2017
作者:  
Feng, Qiang;  Zhang, Weipeng
  |  收藏  |  浏览/下载:33/0  |  提交时间:2018/06/05
Design methodology for shape transition inlets based on constant contraction of discrete streamtubes 期刊论文  OAI收割
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART G-JOURNAL OF AEROSPACE ENGINEERING, 2016, 卷号: 230, 期号: 8, 页码: 1496-1506
作者:  
Xiao YB(肖雅斌);  Yue LJ(岳连捷);  Ma SH;  Zhang XY(张新宇)
收藏  |  浏览/下载:39/0  |  提交时间:2016/09/14
Design and implementation of a single actuated bio-mimetic robotic fish (EI CONFERENCE) 会议论文  OAI收割
2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China
作者:  
Wang X.;  Wang X.;  Wang X.
收藏  |  浏览/下载:52/0  |  提交时间:2013/03/25
Turning methods for quadruped robot with two degrees of freedom per leg 期刊论文  OAI收割
Journal of Harbin Institute of Technology, 2011, 卷号: 18, 期号: 5, 页码: 7-13
作者:  
Li, Bin;  Yang, Yiping;  Shao. Xuesong;  Wang, Wei
  |  收藏  |  浏览/下载:14/0  |  提交时间:2016/10/26
先进注塑机控制系统若干关键问题的研究 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, 2008
作者:  
宋英华
收藏  |  浏览/下载:53/0  |  提交时间:2015/09/02
Method for the fabrication of isometric mesh on the concave of a spherical substrate (EI CONFERENCE) 会议论文  OAI收割
2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies - Advanced Optical Manufacturing and Testing Technologies, November 2, 2005 - November 5, 2005, Xian, China
作者:  
Feng X.-G.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
Metallic mesh has been widely used in electromagnetic interference windows. While the duty ratio of curved mesh equals to planar mesh'  the theory of planar mesh may be applied to curved mesh according to equivalent-circuit model. So the idea that latitude lines intersect latitude lines to form isometric mesh on the concave of a sphere is put forward  and the method of fabricating the mesh by concentric optical scan is introduced. The movement parts of equipment consist of an erection turning  a horizontal dividing and a pitching dividing spindle. Firstly  a spherical substrate is fixed on the horizontal dividing spindle that has been set horizontally on the erect turning spindle  the substrate revolves around the axis of the erect spindle  the tube of object lens that is fixed on the pitching dividing spindle steps at pitching direction  and a revolving circuit of the substrate corresponds to a step of the tube. Gradually  a set of latitude lines is attained. Afterward  the substrate makes a quarter turn around the horizontal spindle  another orientation latitude lines are also gained. Thus  the isometric mesh on the concave of a spherical substrate is gained. The process comprises surface cleaning  coating photoresist  laser direct writing  development  evaporated film  dissolving photoresist and plating. The fabricated spherical mesh has a line width of 7 m and a period of 600m. Experiment shows that infrared transmission and electromagnetism shield efficiency of the metallic mesh are relatively consistent with theoretical value.  
High-accuracy real-time automatic thresholding for centroid tracker (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.;  Zhang Y.
收藏  |  浏览/下载:37/0  |  提交时间:2013/03/25
Many of the video image trackers today use the centroid as the tracking point. In engineering  we can get several key pairs of peaks which can include the target and the background around it and use the method of Otsu to get intensity thresholds from them. According to the thresholds  it give a great help for us to get a glancing size  a target's centroid is computed from a binary image to reduce the processing time. Hence thresholding of gray level image to binary image is a decisive step in centroid tracking. How to choose the feat thresholds in clutter is still an intractability problem unsolved today. This paper introduces a high-accuracy real-time automatic thresholding method for centroid tracker. It works well for variety types of target tracking in clutter. The core of this method is to get the entire information contained in the histogram  we can gain the binary image and get the centroid from it. To track the target  so that we can compare the size of the object in the current frame with the former. If the change is little  such as the number of the peaks  the paper also suggests subjoining an eyeshot-window  we consider the object has been tracked well. Otherwise  their height  just like our eyes focus on a target  if the change is bigger than usual  position and other properties in the histogram. Combine with this histogram analysis  we will not miss it unless it is out of our eyeshot  we should analyze the inflection in the histogram to find out what happened to the object. In general  the impression will help us to extract the target in clutter and track it and we will wait its emergence since it has been covered. To obtain the impression  what we have to do is turning the analysis into codes for the tracker to determine a feat threshold. The paper will show the steps in detail. The paper also discusses the hardware architecture which can meet the speed requirement.  the paper offers a idea comes from the method of Snakes