Theses and Dissertations

Issuing Body

Mississippi State University

Advisor

Swan II, J. Edward

Committee Member

Rahimi, Shahram

Committee Member

Bethel, Cindy

Date of Degree

5-1-2020

Document Type

Graduate Thesis - Open Access

College

James Worth Bagley College of Engineering

Department

Department of Computer Science and Engineering

Abstract

Most current augmented reality (AR) displays present content at a fixed focal demand. At the same time, real-world stimuli can occur at a variety of focal distances. To integrate information, users need to switch eye focus between virtual and real-world information continuously. Previously, Gabbard, Mehra, and Swan (2018) examined these issues, using a text-based visual search task on a monocular AR display. This thesis replicated and extended the previous experiment by including a new experimental variable stereopsis (stereo, mono) and fully crossing the variables of context switching and focal distance switching, using AR haploscope. The results from the monocular condition indicate successful replication, which is consistent with the hypothesis that the findings are a general property of AR. The outcome of the stereo condition supports the same adverse effects of context switching and focal distance switching. Further, participants have better performance and less eye fatigue in the stereo condition compared to the monocular condition.

URI

https://hdl.handle.net/11668/16869

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