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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 57, Iss. 4 — Apr. 1, 1967
  • pp: 493–502

Film-Grain Noise in Wavefront-Reconstruction Imaging

J. W. GOODMAN  »View Author Affiliations


JOSA, Vol. 57, Issue 4, pp. 493-502 (1967)
http://dx.doi.org/10.1364/JOSA.57.000493


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Abstract

A fundamental limitation to the quality of wavefront reconstruction images is noise generated by the granular structure of the recording medium. Predictions of the signal-to-noise ratios that can be achieved in wavefront-reconstruction imaging are based on the checkerboard and overlapping circular-grain models of the recording medium. When the object consists of a multitude of resolvable point sources, the signal-tonoise ratio is found to be proportional to the space-bandwidth product of the recording medium; when the object is a diffuse surface, the signal-to-noise ratio is found to be independent of that space-bandwidth product. The quantum limit to signal-to-noise ratio is approachable only with a judicious choice of reference exposure and a recording medium free of other classical noise sources.

Citation
J. W. GOODMAN, "Film-Grain Noise in Wavefront-Reconstruction Imaging," J. Opt. Soc. Am. 57, 493-502 (1967)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-57-4-493

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