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长春光学精密机械与物... [4]
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OAI收割 [5]
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会议论文 [4]
期刊论文 [1]
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2013 [1]
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简繁对应关系与简繁转换
期刊论文
OAI收割
中文信息学报, 2013, 卷号: 27, 期号: 4, 页码: 74-82,102
王立军
;
王晓明
;
吴健
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收藏
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浏览/下载:15/0
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提交时间:2014/12/16
简化字
繁体字
简繁对应关系
简繁转换
Simplified characters
Traditional characters
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Simplified and Traditional conversion
The measuring method for low rotational speed with the frequency difference generated by radial gratings (EI CONFERENCE)
会议论文
OAI收割
2012 International Applied Mechanics, Mechatronics Automation Symposium, IAMMAS 2012, September 7, 2012 - September 9, 2012, Shenyang, Liaoning, China
Guo W.-l.
;
Qiao Y.-f.
收藏
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浏览/下载:23/0
  |  
提交时间:2013/03/25
The new method has been proposed based on the comparison and analysis of the traditional methods for measuring rotating speed. It can guarantee real-time property with radial gratings at measuring low speed. It is clearly explained that the fundamental principle for measuring rotating speed and characters of the method and presented the constitution of the system hardware and the process flows. (2012) Trans Tech Publications
Switzerland.
Non-uniformity correction in multi-CCD imaging system (EI CONFERENCE)
会议论文
OAI收割
2010 2nd International Conference on Mechanical and Electronics Engineering, ICMEE 2010, August 1, 2010 - August 3, 2010, Kyoto, Japan
Tao M.
;
Ren J.
收藏
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浏览/下载:33/0
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提交时间:2013/03/25
The non-uniformity phenomenon exists in each channel of multi-CCD imaging systems. The factors which lead to the problem are complex. The conventional calibrating algorithms can not consider all of these factors and have poor effects. According to the characters of multi-CCD imaging systems
a non-uniformity correction method based on the scene was proposed by adopting the traditional two-point correction theories. The correction coefficient of each channel image can be calculated via the linear relation between the two neighboring pixel lines in the two-channel images. Compared with the conventional two-point calibration and multi-point calibration methods
contrastive calibrating results were obtained. This method does not need any standard lighted image as reference source
which provides a real time way for calibrating the multi-CCD imaging systems in practical applications. 2010 IEEE.
Optimizing control mode of optical payloads based on multi-population genetic algorithm (EI CONFERENCE)
会议论文
OAI收割
2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009, August 9, 2009 - August 12, 2009, Changchun, China
Xu W.
;
Jin G.
收藏
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浏览/下载:30/0
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提交时间:2013/03/25
Optimizing the control mode of optical payload could improve the payload's work efficiency. When the mathematic model of payload's control mode was established
optimization problems could be boiled down to seek the maximal value of the function with many variables. This paper put forward a calculational method to base the mathematic model
the calculational method was multi-population genetic algorithm (MPGA). After the 0-1 variables and real multidimensional ones had been coded separately
the algorithm established the populations independently
made the multidimensional variables as the centrosome and combined 0-1 ones to work out the maximal value of the function which was established to describe the control mode of the optical payload. Moreover
the emulational experiment had been done with the material arithmetic operators. The result indicates that the method using MPGA can hurdle the disadvantage of traditional ones which calculate slowly and get into local best value trap easily . It has the characters that not only fits large scale area scout
but also gets the best value in full scale rapidly
so this algorithm can better satisfy the technology demand for the intelligent control of optical payload. 2009 IEEE.
Displacement estimation by the phase-shiftings of fourier transform in present white noise (EI CONFERENCE)
会议论文
OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Wu Y.-H.
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浏览/下载:32/0
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提交时间:2013/03/25
Displacement estimation is a fundamental problem in Real-time video image processing. It can be typically approached by theories based on features in spatial domain. This paper presents an algorithm which improves the theory for estimating the moving object's displacement in spatial domain by its Fourier transform frequency spectrum. Because of the characters of Fourier transform
the result is based on all the features in the image. Utilizing shift theorem of Fourier transform and auto-registration
the algorithm employs the phase spectrum difference in polar coordinate of two frame images sequence with the moving target1
2. The method needn't transform frequency spectrum to spatial domain after calculation comparing with the traditional algorithm which has to search Direc peak
and it reduces processing time. Since the technique proposed uses all the image information
including all the white noise in the image especially
and it's hard to overcome the aliasing from noises
but the technique can be an effective way to analyze the result in little white noise by the different characters between high and low frequency bands. It can give the displacement of moving target within 1 pixel of accuracy. Experimental evidence of this performance is presented
and the mathematical reasons behind these characteristics are explained in depth. It is proved that the algorithm is fast and simple and can be used in image tracking and video image processing.