scholarly journals Reduction in Edge-Ringing in Aberrated Images of Coherent Edge Objects by Multishaded Aperture

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Venkanna Mekala ◽  
Karuna Sagar Dasari
Keyword(s):  
Optical System ◽  
Intensity Distribution ◽  
Imaging Techniques ◽  
Straight Edge ◽  
Circular Aperture ◽  
Coherent Imaging ◽  
Image Intensity ◽  
Coherent Illumination

The images of a straight edge in coherent illumination produced by an optical system with circular aperture and apodized with multiple filters have been studied. The most common problem encountered in the coherent-imaging techniques is the edge-ringing. To minimize the edge-ringing, multishaded aperture method has been proposed. Image intensity distribution curves are drawn and edge-ringing values are evaluated. The results are compared to that of the airy case with the use of single, double and triple filtering.

AOTF-based optical system of a microscope module for multispectral imaging techniques

2017 ◽  
Author(s):  
Olga V. Polschikova ◽  
Alexander Machikhin ◽  
Vladislav Batshev ◽  
Alina Ramazanova ◽  
Artyom Belov ◽  
...  
Keyword(s):  
Optical System ◽  
Multispectral Imaging ◽  
Imaging Techniques

Advanced label-free cellular identification in flow by collaborative coherent imaging techniques

2019 ◽  
Author(s):  
David Dannhauser ◽  
Domenico Rossi ◽  
Maria Isabella Maremonti ◽  
Pasquale Memmolo ◽  
Pietro Ferraro ◽  
...  
Keyword(s):  
Imaging Techniques ◽  
Label Free ◽  
Coherent Imaging

scholarly journals Manipulation of image intensity distribution at 7.0 T: Passive RF shimming and focusing with dielectric materials

2006 ◽  
Vol 24 (1) ◽  
pp. 197-202 ◽  
Author(s):  
Qing X. Yang ◽  
Weihua Mao ◽  
Jinghua Wang ◽  
Michael B. Smith ◽  
Hao Lei ◽  
...  
Keyword(s):  
Intensity Distribution ◽  
Dielectric Materials ◽  
Image Intensity ◽  
Rf Shimming

Propagation Properties of Flattened Gaussian Beams Passing Through an Misaligned Optical System with Misaligned Circular Aperture

2010 ◽  
Vol 39 (10) ◽  
pp. 1844-1850
Author(s):  
沈学举 SHEN Xue-ju ◽  
许芹祖 XU Qin-zu ◽  
王龙 WANG Long ◽  
韩玉东 HAN Yu-dong ◽  
王艳奎 WANG Yan-kui
Keyword(s):  
Optical System ◽  
Gaussian Beams ◽  
Circular Aperture ◽  
Misaligned Optical System ◽  
Propagation Properties
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