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Journal of Electronic Imaging • Open Access

Photometric limits for digital camera systems
Author(s): Michael Schöberl; André Kaup; Andreas Brückner; Siegfried Fößel

Paper Abstract

Image sensors for digital cameras are built with ever decreasing pixel sizes. The size of the pixels seems to be limited by technology only. However, there is also a hard theoretical limit for classical video camera systems: During a certain exposure time only a certain number of photons will reach the sensor. The resulting shot noise thus limits the signal-to-noise ratio. In this letter we show that current sensors are already surprisingly close to this limit.

Paper Details

Date Published: 15 June 2012
PDF: 4 pages
J. Electron. Imaging. 21(2) 020501 doi: 10.1117/1.JEI.21.2.020501
Published in: Journal of Electronic Imaging Volume 21, Issue 2
Show Author Affiliations
Michael Schöberl, Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
André Kaup, Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
Andreas Brückner, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Siegfried Fößel, Fraunhofer-Institut für Integrierte Schaltungen (Germany)


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