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CAS IR Grid
机构
长春光学精密机械与物... [3]
重庆绿色智能技术研究... [1]
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OAI收割 [4]
内容类型
会议论文 [3]
期刊论文 [1]
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2014 [1]
2009 [1]
2007 [1]
2005 [1]
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Soluble Microbial Products from Water Biological Treatment Process: A Review
期刊论文
OAI收割
WATER ENVIRONMENT RESEARCH, 2014, 卷号: 86, 期号: 3, 页码: 223-231
作者:
Kang, Jia
;
Du, Gang
;
Gao, Xu
;
Zhao, Bin
;
Guo, Jinsong
  |  
收藏
  |  
浏览/下载:29/0
  |  
提交时间:2018/03/15
soluble microbial products
biotreatment
characteristics
models
process 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.
收藏
  |  
浏览/下载:44/0
  |  
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.
Novel fast measurement method of twist angle and optical retardation of liquid crystal display (EI CONFERENCE)
会议论文
OAI收割
Asia Display 2007, AD'07, March 12, 2007 - March 16, 2007, Shanghai, China
Huang X.
;
Lu Y.-T.
;
Kong X.-J.
;
Jing H.
;
Fu G.-Z.
;
Jin H.
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2013/03/25
A novel method is proposed to measure twist angle and optical retardation of liquid crystal display in this paper. The new method which is one of single-wavelength methods has three characteristics
introducing a method of measuring the total intensity ratio of the transmitted light to eliminate the influence of absorption by the polarizer
using circularly and homogeneously aligned LC cell (CH-LC) as a unique polarization-converting device
analyzer
using variable sector diaphragm and photodetector to detect the total intensity of transmitted light whose original polarization direction is continuously changed from 0 to arbitrary angle
CH-LC
liquid crystal display and so on. The twist angle () and optical retardation (nd) can be derived by using Jones matrix analysis and a curve fitting where and nd are fitting parameters. Experiment proved the results are accurate
the process of operation is fast
the devices are economical.
Computer aided alignment for off-axis asphere null test (EI CONFERENCE)
会议论文
OAI收割
Optical Design and Testing II, November 8, 2004 - November 11, 2004, Beijing, United states
作者:
Zhang X.
;
Zhang X.
;
Zhang X.
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2013/03/25
The method of null test is widely used for testing an aspheric mirror. During optical manufacturing process
the mirror has to be moved up and down for testing and fabricating. Because the alignment of null test is difficult and time costing
the efficiency of making aspheric mirror is decreased greatly. In order to solve the problem
we developed a software based on polynomial fitting to calculate the misalignment parameters. By using the software and computer numeric controlled adjusting equipments
the efficiency of testing is increased and the accuracy of test has reached up to /40 RMS where equals to 632.8nm
which has fulfilled the demand of the designer.