Wiener filtering in the process of dark current suppression

Jan Švihlík; Frantisek Mojžíš; Karel Fliegel; Jaromír Kukal

doi:10.1117/12.928652

15 October 2012 Wiener filtering in the process of dark current suppression

Jan Švihlík, Frantisek Mojžíš, Karel Fliegel, Jaromír Kukal

Proceedings Volume 8499, Applications of Digital Image Processing XXXV; 849925 (2012) https://doi.org/10.1117/12.928652
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

Abstract

This paper is devoted to the dark current suppression in astronomical and multimedia images using the wiener filtering. We consider dark current represented by dark frame as a white impulsive noise generated in CCD sensor. The wiener filter is then set up accordance to measured second sample moments at CCD at chosen temperature range 268 K to 293 K. Furthermore, the temperature dependency of the second sample moments was fit by exponential regression. Hence, we are able to find sample moment and suppress dark current at given temperature. The measurement was done at SBIG ST8 camera.

Citation Download Citation

Jan Švihlík, Frantisek Mojžíš, Karel Fliegel, and Jaromír Kukal "Wiener filtering in the process of dark current suppression", Proc. SPIE 8499, Applications of Digital Image Processing XXXV, 849925 (15 October 2012); https://doi.org/10.1117/12.928652

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Electronic filtering

Digital filtering

Filtering (signal processing)

Cameras

Astronomy

Temperature metrology

Nonlinear filtering

Show All Keywords

Keywords/Phrases

Search In:

Publication Years