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长春光学精密机械与物... [5]
自动化研究所 [1]
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OAI收割 [6]
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会议论文 [5]
期刊论文 [1]
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2011 [1]
2009 [2]
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2004 [1]
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The parameter optimization of missile actuator based on spatial RSSR linkage mechanism (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011, Wuhan, China
Ge M.
;
Han X.
;
Jia H.
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浏览/下载:16/0
  |  
提交时间:2013/03/25
Analyzed the forms of movement of missile actuator based on spatial RSSR linkage mechanism. To achieve synchronic output of each axis
applied the multi-body dynamic application ADAMS to realize its parametric modeling and optimization
finally got the appropriate parameters to satisfy the performance. Then
researched the parameters affection to synchronic performance completed the initial design of the actuator transmission system. 2011 IEEE.
LIE GROUP FRAMEWORK OF ITERATIVE CLOSEST POINT ALGORITHM FOR n-D DATA REGISTRATION
期刊论文
OAI收割
INTERNATIONAL JOURNAL OF PATTERN RECOGNITION AND ARTIFICIAL INTELLIGENCE, 2009, 卷号: 23, 期号: 6, 页码: 1201-1220
作者:
Ying, Shihui
;
Peng, Jigen
;
Du, Shaoyi
;
Qiao, Hong
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  |  
浏览/下载:21/0
  |  
提交时间:2015/08/12
ICP
Lie group
registration
iterative linear systems
initial parameters
An image matching algorithm based on sub-block coding (EI CONFERENCE)
会议论文
OAI收割
2nd International Workshop on Computer Science and Engineering, WCSE 2009, October 28, 2009 - October 30, 2009, Qingdao, China
作者:
Li S.
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浏览/下载:32/0
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提交时间:2013/03/25
In order to improve the speed of matching algorithm and simplify the processing of existing sub-block coding matching
a new template matching method combined local gray value encoding matching and phase correlation is proposed. Matching process is divided into rough matching and fine matching. Rough matching divides the image into certain size blocks called R-block
sums the gray value of each R-block pixel
encodes the R-block according to the gray value distribution of R-block with the adjacent R-block
and matches by step between the template and each search sub-image. Then
fine matching results are obtained using phase correlation according to initial match parameters. The time complexity of the proposed method is (M2) .The new algorithm is faster than traditional algorithm by two orders of magnitude
and the speed has improved twice compared with existing sub-block coding method. Experiments demonstrate that the new algorithm is robust to the linear transformation of pixel grey value and image noise
and it also has the stability of small-angle rotation. 2009 IEEE.
Study of high speed photography measuring instrument (EI CONFERENCE)
会议论文
OAI收割
27th International Congress on High-Speed Photography and Photonics, September 17, 2006 - September 22, 2006, Xi'an, China
Zhang Z.
;
Sun J.
;
Wu K.
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浏览/下载:25/0
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提交时间:2013/03/25
High speed photograph measuring instrument is mainly used to measure and track the exterior ballistics
which can measure the flying position of the missile in the initial phase and trajectory. A new high speed photograph measuring instrument is presented in this paper. High speed photography measuring system records the parameters of object real-time
and then acquires the flying position and trajectory data of the missile in the initial phase. The detection distance of high speed photography is more than 4.5km
and the least detection distance is 450m
under the condition of well-balanced angular velocity and angular acceleration
program pilot track error less than 5. This instrument also can measure and record the flying trail and trajectory parameters of plane
aero naval missile.
Research on long focal length On-axis TMA system for high-resolution remote sensing (EI CONFERENCE)
会议论文
OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Advanced Optical Manufacturing Technologies, July 8, 2007 - July 12, 2007, Chengdu, China
作者:
Zhang L.
;
Zhang L.
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浏览/下载:25/0
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提交时间:2013/03/25
TMA (Three Mirror Anastigmatic) is popular to the design of space-based optical system. This paper describes the characteristics of the on-axis TMA optical system. An on-axis TMA system with 13m focal length is designed and analyzed. To solve the initial configuration parameters
Cassagrain structure is confirmed firstly
and then the tertiary mirror. Based on initial configuration parameters
automatic optimization is executed in ZEMAX program
and design result with excellent image quality is acquired
which shows the procedure we choosed with good advantage of computer processing. As the distortion of the design reaches 1%
its influences on TDICCD brushing camera are discussed. The source of distortion is analyzed and correcting methods are considered. Zero focal power corrector is chosen to correct the distortion
and the corrected distortion is less than 0.02%. The research on on-axis TMA system in this paper makes a foundation for farther high-resolution remote sensing applications.
PSO based gabor wavelet feature extraction method (EI CONFERENCE)
会议论文
OAI收割
2004 International Conference on Information Acquisition, ICIA 2004, June 21, 2004 - June 25, 2004, Hefei, China
作者:
Sun H.
;
Zhang Y.
;
Sun H.
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浏览/下载:20/0
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提交时间:2013/03/25
In this paper
the time of feature extraction is faster. By test in low contrast image
2D continues Gabor wavelets are adopted to realize feature extraction. By optimize Gabor wavelet's parameters of translation
the feasibility and effectiveness of the algorithm are demonstrated by VC++ simulation platform in experiments. 2004 IEEE.
orientation
and scale to make it approximates a local image contour region. The method of Sobel edge detection is used to get the initial position and orientation value of optimization in order to improve the convergence speed. In the wavelet characteristic space
we adopt PSO (particle swarm optimization) Algorithm to identify points on the security border of the system. Comparing to the LM algorithm
it can ensure reliable convergence the target
which can improve convergent speed