How Late Can you Update? Detecting Blur and Transients in Gaze-Contingent Multi-Resolutional Displays

Autor: George W. McConkie, Lester C. Loschky
Rok vydání: 2005
Předmět:
Zdroj: Proceedings of the Human Factors and Ergonomics Society Annual Meeting. 49:1527-1530
ISSN: 1071-1813
2169-5067
DOI: 10.1177/154193120504901705
Popis: Lester C. Loschky Kansas State University Manhattan, KS George W. McConkie University of Illinois at Urbana-Champaign Champaign, IL This study investigated perceptual disruptions in gaze-contingent multi-resolutional displays (GCMRDs) due to delays in updating the image after an eye movement. GCMRDs can be used to save processing resources and transmission bandwidth in many single-user display applications such as virtual reality, simulators, video-telephony, remote piloting, and teleoperation. The current study found that image update delays after an eye movement could be as long as 60 ms without significantly increasing the detectability of image degradation and/or transients due to the update. This is good news for designers of GCMRD applications, since it is ample time to update their displays after an eye movement without disrupting perception. Users of virtual reality, simulators, video-telephony, remote piloting, teleoperation, and other single-user applications often need large, high-resolution displays exceeding limits on transmission bandwidth and/or computation resources. One way around these limitations is to eliminate detail that users cannot resolve in the visual periphery. Gaze-contingent multi-resolutional displays (GCMRDs) do just that, by dynamically displaying high resolution where the user is looking, as indicated by a gaze-tracker, and lower resolution elsewhere (Reingold
Databáze: OpenAIRE