Abstract

The effect of noise on the modulation transfer function was studied by means of threshold measurements. White noise and 1/f noise of various levels and different cutoff frequencies were displayed on a television screen together with a sinusoidally modulated bar pattern. The signal-to-noise threshold necessary for perception was measured as a function of the spatial frequency of the bar pattern. This signal-to-noise threshold, in addition to being strongly dependent on the bar-pattern frequency is also dependent on the rms value and the frequency distribution of the noise as well as the difference between the bar-pattern frequency and medium frequency of the noise. An attempt was made to explain the results by visual observation of the bar pattern in the presence of narrow-bandwidth noise.

© 1970 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Spatial-Frequency Masking in Vision: Critical Bands and Spread of Masking*

Charles F. Stromeyer and Bela Julesz
J. Opt. Soc. Am. 62(10) 1221-1232 (1972)

Color and luminance spatial tuning estimated by noise masking in the absence of off-frequency looking

M. Angeles Losada and Kathy T. Mullen
J. Opt. Soc. Am. A 12(2) 250-260 (1995)

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)

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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA 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 OSA member, or as an authorized user of your institution.

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

Figures (15)

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

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

Equations (3)

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

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