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西安光学精密机械研究... [3]
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北京航空航天大学 [1]
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会议论文 [4]
期刊论文 [3]
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Investigation of dwell time based on lucy-richardson algorithm and gercherg surface continuation algorithm
会议论文
Shanghai, China, 2020-06-29
作者:
Qian, XinJie
;
Ma, Zhen
;
Yao, Yongsheng
;
Shen, Le
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浏览/下载:8/0
  |  
提交时间:2021/03/04
Dwell time
Lucy-Richardson algorithm
Edge continuation
Gerchberg extrapolation algorithm
Optical processing
Improved vector extrapolation based Richardson-Lucy algorithm used for wavefront coded imaging and experimental demonstration
会议论文
Munich, Germany, 2019-06-24
作者:
Zhao, Hui
;
Xia, Jingjing
;
Zhang, Ling
;
Yu, Congcong
;
Fan, Xuewu
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  |  
浏览/下载:35/0
  |  
提交时间:2019/11/27
wave-front coding
computational imaging
Richardson-Lucy algorithm
vector extrapolation
An Accelerated Motion Blurred Star Restoration Based on Single Image
期刊论文
IEEE SENSORS JOURNAL, 2017, 卷号: 17, 页码: 1306-1315
作者:
Jiang, Jie
;
Huang, Junnan
;
Zhang, Guangjun
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浏览/下载:8/0
  |  
提交时间:2019/12/30
Motion blur
star restoration
blur kernel estimation
improved Radon transform
vector extrapolation
accelerated restoration
Richardson-Lucy algorithm
Development of Monte Carlo code for Z-pinch driven fusion neutron imaging diagnosis system simulation
期刊论文
Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams, 2013, 卷号: 25, 期号: [db:dc_citation_issue], 页码: 177-181
作者:
Jia, Qinggang
;
Zhang, Tiankui
;
Zhang, Fengna
;
Hu, Huasi
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浏览/下载:4/0
  |  
提交时间:2019/12/10
Diagnosis systems
Fusion imaging
Fusion neutrons
Geant4 simulation toolkit
Image correlations
Image reconstruction algorithm
Low signal-to-noise ratio
Low SNR
Monte Carlo codes
Neutron image
Neutron yields
Physical process
Richardson-Lucy
Wiener filtering
Z pinch
气动光学效应图像复原算法与应用研究
学位论文
工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2012
作者:
赵博
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浏览/下载:71/0
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提交时间:2015/09/02
气动光学效应
图像去模糊
RL算法
NLR-MRF
MMSE估计
Aero-Optical Effects
Image deblurring
Richardson-Lucy Algorithm
NLR-MRF
MMSE Estimation
Image motion compensation for a certain aviation camera based on Lucy-Richardson algorithm (EI CONFERENCE)
会议论文
2011 International Conference on Electronics and Optoelectronics, ICEOE 2011, July 29, 2011 - July 31, 2011, Dalian, China
Zhong C.
;
Fu J.
;
Ding Y.
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浏览/下载:15/0
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提交时间:2013/03/25
According to the actual situation
when high quality and high precision are required for the image
both beforehand and afterwards compensation should be used. In this paper
we use Lucy-Richardson algorithm to compensate image motion of a certain aviation camera as an afterwards compensation. Firstly
we analyze the imaging principle of the camera and the reasons that cause image motion. Then we have a brief introduce of the Lucy-Richardson algorithm. At last
in order to show the feasibility of the method
we do some simulation. Through theoretical and practical analysis
experiments and test
we conclude the Lucy-Richardson algorithm can be used to compensate image motion for the certain camera. 2011 IEEE.
Design and image restoration research of a cubic-phase-plate system (EI CONFERENCE)
会议论文
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, April 26, 2010 - April 29, 2010, Dalian, China
Zhang X.
;
Zhang X.
;
Shi G.
;
Zhang J.
;
He F.
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浏览/下载:18/0
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提交时间:2013/03/25
Wave-front coding technology is a novel jointly optical and digital imaging technology which can greatly extend the depth of focus of optical systems. The image restoration process is an important part of wave-front coding technology. Using wave-front coding makes the modulation transfer function(MTF) values of the optical systems change little over a range of several times the depth of focus
which means the system MTF is quite insensitive to defocus
and there is no zero in the passband. So we can design a single filter for the restoration of images in different defocus positions. However
it's hard to avoid noise during image acquisition and transmission processes. These noises will be amplified in the image restoration
especially in the high frequency part when the MTF drop is relatively low. The restoration process significantly reduces the system signal to noise ratio this way. Aimed at the problem of noise amplification
a new algorithm was proposed which incorporated wavelet denoising into the iterative steps of Lucy-Richardson algorithm. Better restoration results were obtained through the new algorithm
effectively solving the noise amplification problem of original LR algorithm. Two sets of identical triplet imaging systems were designed
in one of which the cubic-phase-plate was added. Imaging experiments of the manufactured systems were carried
and the images of a traditional system and a wave-front coded system before and after decoding were compared. The results show that the designed wave-front coded system can extend the depth of focus by 40 times compared with the traditional system while maintaining the light flux and the image plane resolution. 2010 Copyright SPIE - The International Society for Optical Engineering.
Restoration of pinhole images using Lucy-Richardson algorithm
期刊论文
acta physica sinica, 2006, 卷号: 55, 期号: 5, 页码: 2364-2370
作者:
Kong, XL
;
Li, YT
;
Yuan, XH
;
Yu, QZ
;
Zheng, ZY
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浏览/下载:12/0
  |  
提交时间:2015/08/18
pinhole imaging
point spread function
Lucy-Richardson algorithm
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