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CAS IR Grid
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长春光学精密机械与物... [4]
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期刊论文 [5]
会议论文 [3]
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chemical p... [1]
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Adaptively-Weighted Blind Image Restoration Algorithm Based on Energy Constraint
期刊论文
OAI收割
Guangxue Xuebao/Acta Optica Sinica, 2018, 卷号: 38, 期号: 2
作者:
Su, Chang
;
Fu, Tianjiao
;
Zhang, Xingxiang
;
Ren, Jianyue
;
Jin, Longxu
  |  
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2019/09/17
Image reconstruction
Adaptive optics
Image enhancement
Image processing
Image resolution
Image texture
Optical data processing
Optical transfer function
Remote sensing
Restoration
Signal to noise ratio
Transfer functions
Optical-system design for large field-of-view three-line array airborne mapping camera
期刊论文
OAI收割
Guangxue Jingmi Gongcheng/Optics and Precision Engineering, 2018, 卷号: 26, 期号: 9, 页码: 2334-2343
作者:
Yao, Yuan
;
Xu, Yong-Sen
;
Ding, Ya-Lin
;
Yuan, Guo-Qin
  |  
收藏
  |  
浏览/下载:12/0
  |  
提交时间:2019/09/17
Optical systems
Cameras
Mapping
Modulation
Optical design
Optical transfer function
Transfer functions
Design of large field for visible/infrared integrated optical system
期刊论文
OAI收割
hongwai yu jiguang gongcheng/infrared and laser engineering, 2016, 卷号: 45, 期号: 10
作者:
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2016/12/23
Chemical elements
Diffraction
Infrared devices
Mirrors
Modulation
Optical systems
Transfer functions
Modulation transfer function in seeker camera limits resulting from missile flutter caused by aerodynamic force (EI CONFERENCE)
会议论文
OAI收割
2010 2nd International Conference on Industrial Mechatronics and Automation, ICIMA 2010, May 30, 2010 - May 31, 2010, Wuhan, China
作者:
Zhang X.
;
Zhang X.
;
Zhang X.
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2013/03/25
The imaging quality of seeker in flight mode has been evaluated through analyzing the effects of missile flutter on optical modulation transfer function (MTF) of the optical system. Firstly the data of transverse vibration has been processed to eliminate the trend term caused by the trajectory
then obtained the displacement with two times trapezoidal integration. For the side rotation
the high frequency noise interference in the data has been filtered by using five-point moving average method. Took this model as the quivering rule between the object and the image
and then analyzed the effects of the transverse vibration and the side rotation on imaging quality through MTF. By calculation
the r.m.s value of the image motion caused by missile transverse vibration is 0.026mm
and the side rotation angle is 0.0044 . Through the establishment of two modulation transfer functions (MTF) of image random vibration and linear vibration
the results show that the image quality had declined
and the effect of transverse vibration on image quality is obvious. Through improving the rigidity of the missile and selection of small focal length optical system and shorten the time of exposure can improve the imaging quality of the seeker. 2010 IEEE.
Real-time video compressing under DSP/BIOS (EI CONFERENCE)
会议论文
OAI收割
MIPPR 2009 - Medical Imaging, Parallel Processing of Images, and Optimization Techniques: 6th International Symposium on Multispectral Image Processing and Pattern Recognition, October 30, 2009 - November 1, 2009, Yichang, China
Chen Q.-P.
;
Li G.-J.
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2013/03/25
This paper presents real-time MPEG-4 Simple Profile video compressing based on the DSP processor. The programming framework of video compressing is constructed using TMS320C6416 Microprocessor
the architecture level optimizations are used to improve software pipeline. The system used DSP/BIOS to realize multi-thread scheduling. The whole system realizes high speed transition of a great deal of data. Experimental results show the encoder can realize real-time encoding of 768*576
TDS510 simulator and PC. It uses embedded real-time operating system DSP/BIOS and the API functions to build periodic function
25 frame/s video images. 2009 Copyright SPIE - The International Society for Optical Engineering.
tasks and interruptions etcs. Realize real-time video compressing. To the questions of data transferring among the system. Based on the architecture of the C64x DSP
utilized double buffer switched and EDMA data transfer controller to transit data from external memory to internal
and realize data transition and processing at the same time
Multiangular polarized characteristics of cirrus clouds at 1380 NM
会议论文
OAI收割
2008 IEEE International Geoscience and Remote Sensing Symposium - Proceedings, Boston, MA, United states, July 6, 2008 - July 11,2008
Cheng, Tianhai
;
Gu, Xingfa
;
Chen, Liangfu
;
Yu, Tao
收藏
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浏览/下载:7/0
  |  
提交时间:2014/12/07
Clouds
Aspect ratio
Climate change
Distribution functions
Optical properties
Polarization
Radiation effects
Radiative transfer
Reflection
Remote sensing
Numerical simulation of wavefronts diffracted by apertures with circular symmetry
期刊论文
OAI收割
optik, 2007, 卷号: 118, 期号: 11, 页码: 521, 526
Qu Weijuan
;
刘立人
;
刘德安
;
职亚楠
;
Lu Wei
;
Wang Chunhua
收藏
  |  
浏览/下载:1040/243
  |  
提交时间:2009/09/18
diffraction
fourier optics
fourier transforms
optical transfer functions
Theoretical studies of electron paramagnetic resonance parameters for Cr4+ ions in Ca2GeO4 crystals
期刊论文
OAI收割
Communications in Theoretical Physics, 2005, 卷号: 43, 期号: 2, 页码: 337-340
X. X. Wu
;
W. C. Zheng
;
Y. Mei
收藏
  |  
浏览/下载:37/0
  |  
提交时间:2012/04/14
crystal- and ligand-field theory
electron paramagnetic resonance
charge-transfer mechanism
optical spectroscopy
tunable laser crystal
atomic screening constants
cr4+-doped ca2geo4
scf functions
spectroscopy
absorption
shifts
sites
co2+