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24.2: Estimating the Perceptual Limits of Mobile Displays
Author(s) -
Zafar Fahad,
Choi Mina,
Badano Aldo
Publication year - 2011
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 - 10.1889/1.3621304
Subject(s) - luminance , computer science , observer (physics) , visibility , computer vision , artificial intelligence , perception , mobile device , task (project management) , psychology , engineering , physics , systems engineering , quantum mechanics , neuroscience , operating system , optics
The quality of the displayed image in mobile devices is affected by the varying ambient illumination conditions. Determining appropriate viewing conditions for particular visual tasks requires appropriate instrumentation. However, visual tests can be more practical. We conducted experiments to explore the limitations of mobile displays in terms of the visibility of subtle targets. We explored the effect of background luminance and ambient lighting using two methodologies: a text detection task where the observer identifies characters embedded in noisy backgrounds and a threshold estimation staircase technique. We found that the text detection method holds promise as a surrogate for more complicated tests in the framework of a clinically practical implementation.