Share Email Print
cover

Proceedings Paper

Why the contrast function slope is important
Author(s): Marta Maneiro; Maria L. F. de Mattiello
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The aim of this study was to investigate spatial-frequency at threshold and supra-threshold levels in both normal and open-angle glaucomatous observers. It has been shown that for grating, stimuli contrast detection depends on spatial frequency, level of illumination and condition of the observer, variables which are analyzed by using psychometric functions of contrast in four different spatial frequencies - 6, 7, 9 and 18 cycles per degree - and with photopic and mesopic luminance equal to 15 and 5 cad/m2, respectively. The analysis allows for the study for the circumstances and ranges in which contrast perception exhibits a linear exponent.

Paper Details

Date Published: 14 August 2001
PDF: 4 pages
Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); doi: 10.1117/12.437204
Show Author Affiliations
Marta Maneiro, Consejo Nacional de Investigaciones Cientificas y Tecnicas (Argentina)
Maria L. F. de Mattiello, Consejo Nacional de Investigaciones Cientificas y Tecnicas (Argentina)


Published in SPIE Proceedings Vol. 4419:
4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications

© SPIE. Terms of Use
Back to Top