Fast reconstruction of the Raman spectra and image based on the optimized finite dimension model for multi-channel imaging system

2021 ◽  
Vol 480 ◽  
pp. 126459
Author(s):  
Long Liu ◽  
Xian-guang Fan ◽  
Yu-liang Zhi ◽  
Yi-xin Lin ◽  
Xin Wang
Keyword(s):  
Raman Spectra ◽  
Finite Dimension ◽  
Imaging System ◽  
Fast Reconstruction ◽  
Multi Channel Imaging

Fast reconstruction of Raman spectra based on global weighted linear regression

2020 ◽  
Vol 203 ◽  
pp. 104073
Author(s):  
Xian-guang Fan ◽  
Long Liu ◽  
Zhe-ming Kang ◽  
Ying-jie Zeng ◽  
Yu-liang Zhi ◽  
...  
Keyword(s):  
Linear Regression ◽  
Raman Spectra ◽  
Weighted Linear Regression ◽  
Fast Reconstruction

Modular multi-channel imaging system for littoral observation and target detection

2012 ◽  
Author(s):  
Yuliya Podobna ◽  
Jon Schoonmaker ◽  
Cynthia Boucher ◽  
Steve Saggese ◽  
Daniel Oakley ◽  
...  
Keyword(s):  
Target Detection ◽  
Imaging System ◽  
Multi Channel Imaging

scholarly journals Primary observations of solar filaments using the multi-channel imaging system of the New Vacuum Solar Telescope

2013 ◽  
Vol 8 (S300) ◽  
pp. 117-120 ◽  
Author(s):  
Zhi Xu ◽  
Zhen Y. Jin ◽  
Fang Y. Xu ◽  
Zhong Liu ◽  
Keyword(s):  
High Resolution ◽  
Imaging System ◽  
Solar Photosphere ◽  
Solar Telescope ◽  
Resolution Observation ◽  
Solar Filaments ◽  
Resolution Imaging ◽  
Multi Channel Imaging ◽  
New Generation ◽  
High Resolution Observation

AbstractThe New Vacuum Solar Telescope (NVST) is a new generation ground-based solar facility of China. One of the post-focus instruments is the multi-channel high-resolution imaging system, which is designed to simultaneously observe the dynamic gas motion in the solar photosphere and chromosphere. Since October of 2010 it has been operational in the NVST and some necessary updates were performed in past 2 years. Here we first give a general introduction of this system, and then we exhibit one near-limb observation of solar filaments obtained using this system. By this communication, we would like to show the potential ability to perform the high resolution observation of solar filaments (prominences) using the multi-channel imaging system in the NVST.

New Aspects in the Design of Electron Optical Magnification Systems

1972 ◽  
Vol 30 ◽  
pp. 606-607
Author(s):  
Willem H.J. Andersen
Keyword(s):  
Electron Microscope ◽  
Imaging System ◽  
Chromatic Aberration ◽  
Research Tool ◽  
Energy Losses ◽  
Objective Lens ◽  
Theoretical Limit ◽  
Optical Magnification ◽  
Chromatic Aberrations ◽  
High Degree

Electron microscope design, and particularly the design of the imaging system, has reached a high degree of perfection. Present objective lenses perform up to their theoretical limit, while the whole imaging system, consisting of three or four lenses, provides very wide ranges of magnification and diffraction camera length with virtually no distortion of the image. Evolution of the electron microscope in to a routine research tool in which objects of steadily increasing thickness are investigated, has made it necessary for the designer to pay special attention to the chromatic aberrations of the magnification system (as distinct from the chromatic aberration of the objective lens). These chromatic aberrations cause edge un-sharpness of the image due to electrons which have suffered energy losses in the object.There exist two kinds of chromatic aberration of the magnification system; the chromatic change of magnification, characterized by the coefficient Cm, and the chromatic change of rotation given by Cp.

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