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Image Quality of CRTs Under Ambient Glare: Assessing the ISO 9241‐7 Ergonomic Standard
Author(s) -
Olacsi Gary,
Beaton Robert J.
Publication year - 1999
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1834142
Subject(s) - specular reflection , luminance , glare , contrast (vision) , crts , image quality , optics , diffuse reflection , quality (philosophy) , computer science , contrast ratio , computer vision , artificial intelligence , computer graphics (images) , image (mathematics) , materials science , physics , layer (electronics) , quantum mechanics , composite material
Abstract The effects of five illumination conditions (dark, 200 lux diffuse, 500 lux diffuse, 800 lux diffuse, and 2000 cd/m 2 specular) and two screen contrast polarities on reading times and perceived image quality judgments were assessed for seven CRT/anti‐reflection filter configurations. Judgments and times were compared to ISO classifications and metrics. The findings show that specular reflections degrade image quality more than diffuse reflections. Therefore, the ISO procedure underemphasizes the contribution of the specular reflection luminance ratio' and overemphasizes the contribution of the screen image luminance ratio to compliance classification calculations.