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长春光学精密机械与物... [4]
西安光学精密机械研究... [2]
光电技术研究所 [1]
上海光学精密机械研究... [1]
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OAI收割 [8]
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会议论文 [4]
期刊论文 [4]
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2020 [2]
2018 [1]
2014 [1]
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The design and fabrication of freeform lenses for generating complex illumination patterns on curved surfaces
会议论文
OAI收割
Xian, PEOPLES R CHINA, 2020-10-15
作者:
Zhang, Yupeng
;
Mao, Xianglong
;
Xie, Yongjun
;
Li, Jinpeng
;
Wang, Fengbiao
  |  
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2021/07/23
freeform optics
nonimaging optics
illumination design
diamond machining
高速超分辨结构光照明显微的关键技术及应用
期刊论文
OAI收割
激光与光电子学进展, 2020, 卷号: 57, 期号: 24
作者:
赵天宇
;
汪召军
;
冯坤
;
梁言生
;
何旻儒
  |  
收藏
  |  
浏览/下载:57/0
  |  
提交时间:2021/03/23
microscopy
fluorescence microscopy
super-resolution microscopy
structured illumination microscopy
hardware design
image reconstruction algorithm
显微
荧光显微镜
超分辨显微镜
结构光照明显微镜
硬件设计方法
图像重建算法
Study on uniform irradiance of micro curved-light-emitting diode array
期刊论文
OAI收割
Acta Physica Sinica, 2018, 卷号: 67, 期号: 7, 页码: 12
作者:
Ban, Z.
;
Liang, J. Q.
;
Lu, J. G.
;
Liang, Z. Z.
;
Feng, S. Y.
  |  
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2019/09/17
micro
light-emitting diode array
curve
irradiance uniformity
near-field
design
illumination
Physics
Off Axis Illumination Planar Hyperlens for Non-contacted Deep Subwavelength Demagnifying Lithography
期刊论文
OAI收割
PLASMONICS, 2014, 卷号: 9, 期号: 6, 页码: 1333-1339
作者:
Zhang, Wei
;
Yao, Na
;
Wang, Changtao
;
Zhao, Zeyu
;
Wang, Yanqin
收藏
  |  
浏览/下载:34/0
  |  
提交时间:2015/07/10
Nanolithography
Surface plasmon
Illumination design
The research on statistical properties of TDI-CCD imaging noise (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Gu Y.-Y.
;
Shen X.-H.
;
He G.-X.
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2013/03/25
TDI-CCD can improve the sensitivity of space camera without any degradation of spatial resolution which is widely used in aerospace imaging devices. The article describes the basic working principle and application characteristics of TDI-CCD devices
analyses the composition of TDI-CCD imaging noise
and propose a new method to analyze TDI-CCD imaging noise with statistical probability distribution. In order to estimate the distribution of gray values affect by noise we introduced the concept of skewness and kurtosis. We design an experiment using constant illumination light source
take image with TDI-CCD working at different stage such as stage 16
stage 32
stage 48
stage 64 and stage 96
analyse the characteristics of image noise with the method we proposed
experimental results show that the gray values approximately meet normal distribution in large sample cases. 2011 SPIE.
A design on a control method of a new type of focal plane shutter (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Xue L.
;
Ming L.
;
Zheng L.-N.
;
Zhou J.-F.
;
Zhang H.-W.
;
Zhang J.-C.
收藏
  |  
浏览/下载:33/0
  |  
提交时间:2013/03/25
In order to ensure appropriate exposure time
and no exposure while electric charge is transferring after taking a photograph
it is necessary to have the shutter mechanism cooperate with CCD for area CCD aerial cameras. The ground object illumination has a wide range which is from 4000Lx to 100000Lx
so a shutter which is high efficient and a continuous stepless adjustment are also required. This paper introduces the fundamental principle
structural design and control procedure about this new focal plane shutter. Under the control of DSP
the velocity of shutter curtain governed by the shutter motor can be not only precisely controlled
but also the durability and the reliability are increased. The experiment results have shown that this new shutter has the higher stability of movement
long life span with more than 105 operating times
a wide range of exposure time from1/ 50s to 1/ 320s(depending on the slit width)and the exposure error is less than 10%. With the CCD gain adjustment
the performance of this shutter is fully satisfied with the requirements of area CCD aerial cameras. 2010 IEEE.
Two-dimensional performance of uniform irradiation with the use of an edge-softened lens array and spectral dispersion
期刊论文
OAI收割
appl. optics, 2007, 卷号: 46, 期号: 16, 页码: 3164, 3168
Jiang Xiujuan
;
Zhou Shenlei
;
林尊琪
;
Zhu Jian
收藏
  |  
浏览/下载:1349/463
  |  
提交时间:2009/09/18
INDUCED SPATIAL INCOHERENCE
FOCAL-PLANE IRRADIANCE
CONTINUOUS-PHASE-PLATE
GLASS LASER SYSTEM
HIGH-POWER
TARGETS
ILLUMINATION
DESIGN
PLASMA
LIGHT
Target track system design based on circular projection (EI CONFERENCE)
会议论文
OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
Song H.-J.
;
Zhu M.
;
Hu S.
;
Shen M.-L.
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2013/03/25
Template matching is the process of searching the present and the location of a reference image or an object in a scene image. Template matching is a classical problem in a scene analysis: given a reference image of an object
decide whether that object exists in a scene image under analysis
and find its location if it does. The template matching process involves cross-correlating the template with the scene image and computing a measure of similarity between them to determine the displacement. The conventional matching method used the spatial cross-correlation process which is computationally expensive. Some algorithms are proposed for this speed problem
such as pyramid algorithm
but it still can't reach the real-time for bigger model image. Moreover
the cross-correlation algorithm can't be effective when the object in the image is rotated. Therefore
the conventional algorithms can't be used for practical purpose. In this paper
an algorithm for a rotation invariant template matching method based on different value circular projection target tracking algorithm is proposed. This algorithm projects the model image as circular and gets the radius and the sum of the same radius pixel value. The sum of the same radius pixel value is invariable for the same image and the any rotated angle image. Therefore
this algorithm has the rotation invariant property. In order to improve the matching speed and get the illumination invariance
the different value method is combined with circular projection algorithm. This method computes the different value between model image radius pixel sum and the scene image radius pixel sum so that it gets the matching result. The pyramid algorithm also is been applied in order to improve the matching speed. The high speed hardware system also is been design in order to meet the real time requirement of target tracking system. The results show that this system has the good rotate invariance and real-time property.