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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 15 — May. 20, 2010
  • pp: 2879–2890

Modulation transfer function measurement of a multichannel optical system

Florence de la Barrière, Guillaume Druart, Nicolas Guérineau, Jean Taboury, Jérôme Primot, and Joël Deschamps  »View Author Affiliations

Applied Optics, Vol. 49, Issue 15, pp. 2879-2890 (2010)

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We present a new method to measure the modulation transfer function (MTF) beyond the Nyquist frequency of a multichannel imaging system for which all the channels have parallel optical axes. Such a multichannel optical system produces a set of undersampled subimages. If the subimages contain nonredundant information, high spatial frequencies are folded between low spatial frequencies, leading to the possible extraction of frequencies higher than the Nyquist frequency. The measurement of the MTF of the multichannel system leads to the estimation of the resolution enhancement of the final image that can be obtained by applying a postprocessing algorithm to the collection of undersampled subimages. Experimental images are presented to validate this method.

© 2010 Optical Society of America

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(110.3080) Imaging systems : Infrared imaging
(110.4100) Imaging systems : Modulation transfer function
(110.4190) Imaging systems : Multiple imaging
(110.4155) Imaging systems : Multiframe image processing
(130.3990) Integrated optics : Micro-optical devices

ToC Category:
Imaging Systems

Original Manuscript: January 28, 2010
Revised Manuscript: April 8, 2010
Manuscript Accepted: April 9, 2010
Published: May 14, 2010

Florence de la Barrière, Guillaume Druart, Nicolas Guérineau, Jean Taboury, Jérôme Primot, and Joël Deschamps, "Modulation transfer function measurement of a multichannel optical system," Appl. Opt. 49, 2879-2890 (2010)

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