The limits of visual resolution in natural scene viewing

Autor:	Michael E. Miller, Lester C. Loschky, Jian Yang, George W. McConkie
Rok vydání:	2005
Předmět:	Communication genetic structures business.industry Cognitive Neuroscience Eye movement Experimental and Cognitive Psychology Image degradation Arts and Humanities (miscellaneous) Fixation (visual) Time course Computer vision Artificial intelligence business Psychology Visual resolution
Zdroj:	Visual Cognition. 12:1057-1092
ISSN:	1464-0716 1350-6285
DOI:	10.1080/13506280444000652
Popis:	We examined the limits of visual resolution in natural scene viewing, using a gaze-contingent multiresolutional display having a gaze-centred area-of-interest and decreasing resolution with eccentricity. Twelve participants viewed high-resolution scenes in which gaze-contingent multiresolutional versions occasionally appeared for single fixations. Both detection of image degradation (five filtering levels plus a no-area-of-interest control) in the gaze-contingent multiresolutional display, and eye fixation durations, were well predicted by a model of eccentricity-dependent contrast sensitivity. The results also illuminate the time course of detecting image filtering. Detection did not occur for fixations below 100 ms, and reached asymptote for fixations above 200 ms. Detectable filtering lengthened fixation durations by 160 ms, and interference from an imminent manual response occurred by 400-450 ms, often lengthening the next fixation. We provide an estimate of the limits of visual resolution in natural ...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::14e0d1b70d44511718f623d0ef620ee7 https://doi.org/10.1080/13506280444000652 Zobrazit plný text záznamu Plný text ve formátu PDF