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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Vol. 2, Iss. 10 — Oct. 1, 1985
  • pp: 1644–1666

Image gathering and processing: information and fidelity

Friedrich O. Huck, Carl L. Fales, Nesim Halyo, Richard W. Samms, and Kathryn Stacy  »View Author Affiliations

JOSA A, Vol. 2, Issue 10, pp. 1644-1666 (1985)

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In this paper we formulate and use information and fidelity criteria to assess image gathering and processing, combining optical design with image-forming and edge-detection algorithms. The optical design of the image-gathering system revolves around the relationship among sampling passband, spatial response, and signal-to-noise ratio (SNR). Our formulations of information, fidelity, and optimal (Wiener) restoration account for the insufficient sampling (i.e., aliasing) common in image gathering as well as for the blurring and noise that conventional formulations account for. Performance analyses and simulations for ordinary optical-design constraints and random scenes indicate that (1) different image-forming algorithms prefer different optical designs; (2) informationally optimized designs maximize the robustness of optimal image restorations and lead to the highest-spatial-frequency channel (relative to the sampling passband) for which edge detection is reliable (if the SNR is sufficiently high); and (3) combining the informationally optimized design with a 3 by 3 lateral-inhibitory image-plane-processing algorithm leads to a spatial-response shape that approximates the optimal edge-detection response of (Marr’s model of) human vision and thus reduces the data preprocessing and transmission required for machine vision.

© 1985 Optical Society of America

Original Manuscript: September 21, 1984
Manuscript Accepted: May 13, 1985
Published: October 1, 1985

Friedrich O. Huck, Nesim Halyo, Kathryn Stacy, Richard W. Samms, and Carl L. Fales, "Image gathering and processing: information and fidelity," J. Opt. Soc. Am. A 2, 1644-1666 (1985)

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