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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 59, Iss. 5 — May. 1, 1969
  • pp: 547–553

Bandlimited Image Restoration by Linear Mean-Square Estimation

CHARLES L. RINO  »View Author Affiliations


JOSA, Vol. 59, Issue 5, pp. 547-553 (1969)
http://dx.doi.org/10.1364/JOSA.59.000547


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Abstract

A linear mean-square estimator, optimum for image data available only on a finite interval, is derived for the restoration of images degraded by a system with a bandlimited spread function. The analysis is carried out in one dimension using a prolate-spheroidal-wavefunction expansion of the image data. When the noise is bandlimited to the same bandwidth as the spread function, the expansion represents the image data with zero mean-square error on the entire interval, and the mean-square reconstruction error is equal to that of the optimum linear estimate for image data on the infinite interval. The rate at which the series representation of the estimate converges is discussed and an example presented.

Citation
CHARLES L. RINO, "Bandlimited Image Restoration by Linear Mean-Square Estimation," J. Opt. Soc. Am. 59, 547-553 (1969)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-59-5-547

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