Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Photon noise and constant-volume operators

Not Accessible

Your library or personal account may give you access

Abstract

In an earlier paper [ J. Opt. Soc. Am. A 2, 1769 ( 1985)] a class of nonlinear image processing operators was introduced in which each photoreceptor creates a nonnegative point-spread function whose center height is proportional to its quantum catch and whose volume is constant, so that the local spatial-summation area varies inversely with the local quantum catch. These constant-volume (CV) operators are designed to maximize spatial resolution in the presence of photon noise. In the previous paper it was shown that when CV operators are applied to deterministic images, they produce a surprising range of effects that are reminiscent of human vision, including Mach bands and Weber’s-law behavior. In this paper the consequences of applying CV operators to images containing Poisson noise are analyzed. It is shown that a fixed-parameter CV operator can duplicate the global qualitative properties of spatial vision for retinal illuminances ranging from absolute threshold to 1000 Td. Although there are fundamental obstacles to modeling the exact quantitative properties of human spatial vision by CV operators, these operators seem likely to be useful in machine vision.

© 1987 Optical Society of America

Full Article  |  PDF Article
More Like This
Intensity-dependent spatial summation

Tom N. Cornsweet and John I. Yellott
J. Opt. Soc. Am. A 2(10) 1769-1786 (1985)

Human contrast sensitivity in coherent Maxwellian view: effect of coherent noise and comparison with speckle

A. Felipe, J. M. Artigas, A. M. Pons, and M. J. Buades
J. Opt. Soc. Am. A 14(5) 972-983 (1997)

Two-dot vernier discrimination within 2.0 degrees of the foveal center

Susan L. Groll and Joy Hirsch
J. Opt. Soc. Am. A 4(8) 1535-1542 (1987)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (17)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (86)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved