From spectral sensitivities to noise characteristics

Jérôme Buzzi; Frédéric Guichard; Hervé Hornung

doi:10.1117/12.703961

20 February 2007 From spectral sensitivities to noise characteristics

Jérôme Buzzi, Frédéric Guichard, Hervé Hornung

Proceedings Volume 6502, Digital Photography III; 650209 (2007) https://doi.org/10.1117/12.703961
Event: Electronic Imaging 2007, 2007, San Jose, CA, United States

Abstract

For a given noise at the photosite level and a given output color space, the spectral sensitivities of a sensor constrain the color processing and therefore impact the level of noise in the output. In particular, this noise may be very different from the usually documented photosite noise. A key phenomenon is the appearance of strong correlations between channels which makes individual channel measures (including the classical signal-to-noise ratio, SNR) misleading. We evaluate existing chains and isolated sensors by several indicators including the previously developed color sensitivity. We finally apply this approach to the understanding of good spectral sensitivities by considering hypothetical spectral sensitivities and simulating their performances.

Citation Download Citation

Jérôme Buzzi, Frédéric Guichard, and Hervé Hornung "From spectral sensitivities to noise characteristics", Proc. SPIE 6502, Digital Photography III, 650209 (20 February 2007); https://doi.org/10.1117/12.703961

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