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Proceedings Paper

Stereoacuity determination at changing contrast of colored stereostimuli
Author(s): Gunta Papelba; Maris Ozolinsh; Jelena Petrova; Inara Cipane
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Paper Abstract

Studies are focused on design and appraisal of an objective test for assessment of the stereovision quality in unfavorable conditions. Stereostimuli of different colors are used while the contrast of one of the stimulus being varied. Tests are based on principles of black-and-white and two primary color random dot stereotests. Experiments are divided by the method of stimuli display and separation: 1) stereoeffect is obtained haploscopically - by use of spectacles with color filters (blue and red) or prisms, 2) stimuli separation is obtained by liquid crystal shutters when both eye stimuli are demonstrated with a different delay. The stereovision threshold is determiend at different stimuli disparities simulating the random dot stereotests on a computer monitor with a variable contrasts of one-color stimuli. The applied test differ by stimuli geometry, separation of vision channels, and by data processing. Tests have been appraised and may be used in stereovision studies.

Paper Details

Date Published: 8 August 2003
PDF: 9 pages
Proc. SPIE 5123, Advanced Optical Devices, Technologies, and Medical Applications, (8 August 2003); doi: 10.1117/12.517040
Show Author Affiliations
Gunta Papelba, Univ. of Latvia (Latvia)
Maris Ozolinsh, Univ. of Latvia (Latvia)
Jelena Petrova, Univ. of Latvia (Latvia)
Inara Cipane, Univ. of Latvia (Latvia)

Published in SPIE Proceedings Vol. 5123:
Advanced Optical Devices, Technologies, and Medical Applications
Janis Spigulis; Janis Teteris; Maris Ozolinsh; Andrejs Lusis, Editor(s)

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