Abstract
Augmented Reality (AR) superimposes computer graphics (CG) onto a user’s view of the real world. A key quality problem in this field is to achieve coherence between reality and CG when the user’s eyes refocus or change pupil size. We designed and evaluated a display that improves coherence by measuring the user’s eye state and continuously adapting CG accordingly. Our tabletop prototype emulates an Optical See-Through Head-Mounted Display, a common AR display device. In our evaluation, participants observed three pillars at different depths. We then challenged them to identify a virtual pillar among the three while freely refocusing their eyes. Results show that our design significantly improved realism. Compared to Light Field Displays, our design aims to simplify display-optics while providing similar quality. We could only partially achieve this goal. We discuss the lessons we learned and how we plan to overcome the remaining challenges. The experimental protocol from our evaluation is useful for display developers as it can be used to measure the coherence of a display.
Highlights
In 1965, Ivan Sutherland envisioned the ultimate display [1], a display that provides visual and haptic feedback that can present objects that are indistinguishable from those in the real world.This vision is similar to the Star Trek Holodeck [2] and has inspired research in the fields of photorealistic Augmented Reality (AR)
This paper describes in detail the AR Turing test from [16]
There is a need for refocusable computer graphics (CG) for OST AR in order to create realistic scenes where objects are placed at different depths
Summary
In 1965, Ivan Sutherland envisioned the ultimate display [1], a display that provides visual and haptic feedback that can present objects that are indistinguishable from those in the real world. This vision is similar to the Star Trek Holodeck [2] and has inspired research in the fields of photorealistic Augmented Reality (AR). Current technology is far from being able to create such an ultimate display, but recent research has made progress towards providing indistinguishable visual. OST-HMDs overlay AR content directly onto a user’s view. Researchers have proposed a variety of Multimodal Technologies and Interact. 2017, 1, 22; doi:10.3390/mti1040022 www.mdpi.com/journal/mti
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