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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
长春光学精密机械与物... [3]
工程热物理研究所 [1]
采集方式
OAI收割 [4]
内容类型
会议论文 [2]
期刊论文 [2]
发表日期
2018 [1]
2009 [1]
2008 [1]
2006 [1]
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Outfield experiment of semiconductor laser jamming on color CCD camera
期刊论文
OAI收割
Optik, 2018, 卷号: 173, 页码: 185-192
作者:
Tang, W.
;
Wang, R.
;
Wang, T. F.
;
Guo, J.
  |  
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2019/09/17
Laser jamming
Color CCD camera
Semiconductor laser
Optical saturation
and crosstalk
Optics
Visual Flame Monitoring System Based on Two-Color Method
期刊论文
OAI收割
JOURNAL OF THERMAL SCIENCE, 2009, 卷号: 18, 期号: 3, 页码: 284-288
作者:
Jiang, Fan
;
Liu, Shi
;
Liangi, Shiqiang
;
Li, Zhihong
;
Wang, Xueyao
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2015/12/18
Two-color method
CCD camera
Flame temperature fields
Digital image processing
Study on chromaticity balance for LED exposure system (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2007 - Laser, Ultraviolet, and Terahertz Technology, September 9, 2007 - September 12, 2007, Beijing, China
作者:
Meng Z.
;
Meng Z.
收藏
  |  
浏览/下载:17/0
  |  
提交时间:2013/03/25
A standard white light compounding algorithm based on combination of CCD illumination acquisition with computer control is presented for LEDs. The computer adjust and control the working current of LEDs by using three-color LEDs illumination acquired by CCD camera
achieved chromaticity coordinates error between compounded white light and standard white light D65 less than the threshold beforehand setted by this technique
then acquiring needed standard white light. Compounded white light meet the chromaticity error demand that is able to be changed
at the same time the CCD illumination acquisition system is eliminated. The proposed algorithm improved the light energy utilization efficiency of LED
and eliminated the offset of central wavelength and chromaticity coordinates due to work current change of LEDs. Experimental results show that the proposed algorithm achieved lesser chromaticity error uv=0.001 relative to standard white light D65
enhanced chromaticity uniformity of illumination field.
Study on color model conversion for camera with neural network based on the combination between second general revolving combination design and genetic algorithm (EI CONFERENCE)
会议论文
OAI收割
ICO20: Illumination, Radiation, and Color Technologies, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Li Z.
;
Zhou F.
;
Wang C.
;
Li Z.
收藏
  |  
浏览/下载:36/0
  |  
提交时间:2013/03/25
Munsell color system is selected to establish the mutual conversion between RGB and L*a*b* color model for camera. The color luminance meter and CCD camera synchronously measure the same color card
XYZ value is gotten from the color luminance meter
the training error is 0.000748566
it can show that the method combining second general revolving combination design with genetic algorithm can optimize the hidden-layer structure of neural network. Using the data of testing set to test this network and calculating the color difference between forecast value and true value
the color picture captured from CCD camera is expressed for RGB value as the input of neural network
and the L*a*b* value converted from XYZ value is regarded as the real color value of target card
which the difference is not obvious comparing with forecast result
the maximum is 5.6357 NBS
namely the output of neural network. The neural network of two hidden-layers is considered
the minimum is 0.5311 NBS
so the second general revolving combination design is introduced into optimizing the structure of neural network
and the average of color difference is 3.1744 NBS.
which can carry optimization through unifying project design
data processing and the precision of regression equation. Their mathematics model of encoding space is gained
and the significance inspection shows the confidence degree of regression equation is 99%. The mathematics model is optimized by genetic algorithm
optimization solution is gotten
and function value of the goal is 0.0007168. The neural network of the optimization solution is trained