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7条,第1-7条 帮助

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New Results on Joint Classification of Vertical Structure of Ocean Properties at a Global Scale 期刊论文  OAI收割
IEEE ACCESS, 2020, 卷号: 8, 页码: 66448-66455
作者:  
Fu Y(傅洋);  Zheng ZY(郑泽宇);  Zhou MC(周孟初);  Yuan HT(苑海涛);  Guo XW(郭希旺)
  |  收藏  |  浏览/下载:20/0  |  提交时间:2020/05/16
Constant cyclotron line energy in Hercules X-1 - Joint Insight-HXMT and NuSTAR observations 期刊论文  OAI收割
Journal of High Energy Astrophysics, 2019, 卷号: 23, 页码: 29-32
作者:  
HXMT
  |  收藏  |  浏览/下载:50/0  |  提交时间:2022/02/08
Optimal joint measurements of complementary observables by a single trapped ion 期刊论文  OAI收割
NEW JOURNAL OF PHYSICS, 2017, 卷号: 19
作者:  
Yang, W. L.
  |  收藏  |  浏览/下载:17/0  |  提交时间:2017/12/06
Trace generation of friction stir welding robot for space weld joint on large thin-walled parts 期刊论文  OAI收割
Industrial Robot, 2016, 卷号: 43, 期号: 6, 页码: 617-627
作者:  
Qi RL(祁若龙);  Zhang HJ(张会杰);  Zhang W(张伟);  Yang GX(杨广新)
  |  收藏  |  浏览/下载:63/0  |  提交时间:2016/11/06
Method of improving the accuracy of image motion measurement for panoramic aerial cameras (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, April 26, 2010 - April 29, 2010, Dalian, China
作者:  
Jia P.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
To improve the accuracy of image motion measurement for panoramic aerial cameras  the paper proposed a method of real-time image motion measurement based on 2D spatial correlation. An auxiliary area CCD is positioned paralleled to the main linear TDI CCD in the focal plane of the camera. For every frame of the image sequence taken by the auxiliary CCD  a prediction on the displacement of the current image in the flight direction is made based on the forward image motion velocity. The current and the reference images are combined together for 2D-correlation  which products an image motion vector. By decomposing the vector  both the forward and pendulum-swing image motions can be determined. The demanding computational requirements for the real-time 2D-correlation are covered by a joint transform optical correlator. Simulation test results show that the accuracy is improved and the measurement error is within 0.2 pixels for input images with SNR=1 dB. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Panoramic aerial camera image motion measurement using a hybrid system (EI CONFERENCE) 会议论文  OAI收割
2010 3rd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2010, July 9, 2010 - July 11, 2010, Chengdu, China
作者:  
Jia P.
收藏  |  浏览/下载:27/0  |  提交时间:2013/03/25
Image motion compensation is significantly important for aerial camera photograph. To execute the compensation  we must determine the image motion exactly. This paper proposes a method of real-time image motion measurement for panoramic aerial cameras based on image processing using a hybrid system. Two cameras are simultaneously used in the hybrid system. One main linear CCD for imaging  while the other auxiliary low resolution high frame rate area CCD for determining the image motion based on 2D spatial correlation. The demanding computational requirements for the real-time 2D spatial correlation are covered by a joint transform optical correlator. Simulation test results show that the accuracy is improved and the measurement error is within 0.2 pixels for input images with SNR=1 dB. 2010 IEEE.  
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.