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CAS IR Grid
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长春光学精密机械与物... [3]
数学与系统科学研究院 [3]
南京土壤研究所 [1]
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OAI收割 [7]
iSwitch采集 [1]
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期刊论文 [5]
会议论文 [3]
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2013 [1]
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Computer S... [1]
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Centroid localization algorithm based on bicubic interpolation gray square weighted (EI CONFERENCE)
会议论文
OAI收割
2012 3rd International Conference on Advances in Materials and Manufacturing Processes, ICAMMP 2012, December 22, 2012 - December 23, 2012, Beihai, China
作者:
Zhou J.
收藏
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浏览/下载:152/0
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提交时间:2013/03/25
The 3D coordinates of measured point is embodied in 2D image coordinate of the optical characteristic point via the visual measurement system. Based on the gray square weighted centroid localization algorithm
the paper presents bicubic interpolation gray square weighted centroid localization algorithm
increases the number of effective pixels around the optical characteristic point imaging center
and reduces noise error via the gray square weighted
improves the imaging center location accuracy of optical characteristic point
realizes the accurate location of the optical characteristic points. Results indicate application of the proposed algorithm to location
the standard tolerance along the direction of x is 0.0022 Pixel
the standard tolerance along the direction of y is 0.0023 Pixel
compared with the others
the standard tolerance is minimum and discrete to a lesser degree distancing ideal image point
that is
the proposed algorithm has higher location accuracy. The maximum tolerance along the direction of x is 0.008 Pixel
the one along the direction of y is 0.007 Pixel
compared with the other two algorithms
the maximum tolerance is minimum.Results indicate that the stability of the proposed algorithm is better. (2013) Trans Tech Publications
Switzerland.
基于动态项集计数的加权频繁项集算法
期刊论文
OAI收割
Computer Engineering, 2012, 卷号: 38, 期号: 3, 页码: 31-33
秦丽君
;
罗雄飞
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收藏
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浏览/下载:15/0
  |  
提交时间:2012/11/12
data mining
weighted frequent itemset mining
dynamic itemset counting
weighted support degree
weighted trie tree
downward closure property
maximum weight
Adjacent vertex-distinguishing edge colorings of K-4-minor free graphs
期刊论文
OAI收割
APPLIED MATHEMATICS LETTERS, 2011, 卷号: 24, 期号: 12, 页码: 2034-2037
作者:
Wang, Weifan
;
Wang, Yiqiao
  |  
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2018/07/30
K-4-minor free graph
Adjacent vertex-distinguishing edge coloring
Maximum degree
Chronosequence of paddy soils and phosphorus sorption-desorption properties
期刊论文
iSwitch采集
JOURNAL OF SOILS AND SEDIMENTS, 2011, 卷号: 11, 期号: 2, 页码: 249-259
作者:
Zou, Ping
收藏
  |  
浏览/下载:48/0
  |  
提交时间:2019/10/10
Degree of phosphorus saturation
Maximum phosphorus sorption capacity
Non-point pollution
Paddy soil chronosequence
Computer simulation research on cognitive mechanism of human vision (EI CONFERENCE)
会议论文
OAI收割
International Conference on Measuring Technology and Mechatronics Automation, ICMTMA 2010, March 13, 2010 - March 14, 2010, Changsha, China
Ke H.
;
You W.
收藏
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浏览/下载:38/0
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提交时间:2013/03/25
The development of intelligent system which accorded with human cognitive mechanism will exert a profound influence on national defense
economy
education
culture and etc. A computer simulation method according with cognitive mechanism of human vision was proposed on the basis of Structural Decomposition Theory. Many basic shape feature information tables of similar object from different side can determine a kind of object uniquely. System weighted basic shape features in two different information tables by membership degree and then calculated similarity. The identifying object which had the maximum similarity with it in system was what we needed. The system used 83 pictures of 6 kinds of objects with different side for training and testing. The experiment results demonstrated
task of basic shape extraction
object recognition and others can be completed effectively with the method in paper. The method in paper can be a new attempt on computer simulation method according with cognitive mechanism of human vision from cognitive field. 2010 Crown Copyright.
An improved upper bound for the Laplacian spectral radius of graphs
期刊论文
OAI收割
DISCRETE MATHEMATICS, 2009, 卷号: 309, 期号: 21, 页码: 6318-6321
作者:
Lu, Mei
;
Liu, Huiqing
;
Tian, Feng
  |  
收藏
  |  
浏览/下载:9/0
  |  
提交时间:2018/07/30
Graph
Laplacian spectral radius
Maximum and minimum degree
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
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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
On the Laplacian spectral radius of a graph
期刊论文
OAI收割
LINEAR ALGEBRA AND ITS APPLICATIONS, 2004, 卷号: 376, 页码: 135-141
作者:
Liu, HQ
;
Lu, M
;
Tian, F
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收藏
  |  
浏览/下载:19/0
  |  
提交时间:2018/07/30
Laplacian spectral radius
minimum degree
maximum degree