FW: Removing slit-scanning confocal line artifacts

Posted by Tim Holmes-2 on
URL: http://confocal-microscopy-list.275.s1.nabble.com/Removing-slit-scanning-confocal-line-artifacts-tp1635395p1635939.html

Forgot to mention: the examples are on pg. 204 of that book.

 

From: Tim Holmes
Sent: Tuesday, December 09, 2008 3:03 PM
To: '[hidden email]'
Subject: FW: Removing slit-scanning confocal line artifacts

 

Esteban:  Check out Fig’s. 53 – 56, and afterwards in:  The Image Processing Handbook by John C. Russ, CRC Press, 1992.  If you want, I can scan the pages and email a pdf to you.

 

Regards

Tim

 

From: Confocal Microscopy List [mailto:[hidden email]] On Behalf Of G. Esteban Fernandez
Sent: Tuesday, December 09, 2008 1:26 PM
To: [hidden email]
Subject: Removing slit-scanning confocal line artifacts

 

Hello all,

 

We sometimes see vertical line artifacts in images acquired with our slit-scanning confocal.  The pattern is highly reproducible and can be divided out with a "blank" image.  However, we sometimes have to filter out the artifacts in Fourier space by masking with a thin horz. rectangle through the middle of the FFT map, save the very center.  Can someone please point out references where line artifacts have been removed with a filter (not by dividing out), whether in Fourier space or not?

 

Those interested can see sample images and FFT mask at http://www.mediafire.com/?sharekey=7b16b66ca9129ce991b20cc0d07ba4d2a83703a20834b252

 

Thanks,

Esteban


--
G. Esteban Fernandez, Ph.D.
Associate Director
Molecular Cytology Core Facility
University of Missouri
120 Bond Life Sciences Center
Columbia, MO  65211

http://www.biotech.missouri.edu/mcc/

573-882-4895
573-884-9395 fax

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