Murcia-López, Maria; Collingwoode-Williams, Tara; Steptoe, William; Schwarts, Raz; Loving, Tim and Slater, Mel. 2020. 'Evaluating Virtual Reality Experiences Through Participant Choices'. In: 2020 IEEE Conference on Virtual Reality and 3D User Interfaces (VR). Atlanta, GA, United States 22 - 26 March 2020. [Conference or Workshop Item]

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Abstract or Description

When building virtual reality applications, teams must choose between different configurations of the hardware and/or software aspects, and other factors, of the experience. In this paper we extend a framework for assessing how these factors contribute to quality of experience in an example evaluation. We consider how four factors related to avatar expressiveness affect quality of experience: Eye Gaze, Eye Blinking, Mouth Animation, and Microexpressions. 55 participants experienced an avatar delivering a presentation in virtual reality. At fixed times participants had the opportunity to spend a virtual budget to modify the factors to incrementally improve their quality of experience. They could stop making transitions when they felt further changes would make no further difference. From these transitions a Markov matrix was built, along with probabilities of a factor being present at a given level on participants’ final configurations. Most participants did not spend the full budget, suggesting that there was a point of equilibrium which did not require maximizing all factor levels. We discuss that point of equilibrium and present this work as an extended contribution to the evaluation of people’s responses to immersive virtual environments.

Item Type:	Conference or Workshop Item (Paper)
Identification Number (DOI):	https://doi.org/10.1109/VR46266.2020.00098
Additional Information:	“© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.”
Keywords:	Avatars, Computer graphics, Virtual reality
Departments, Centres and Research Units:	Computing
Dates:	Date Event 22 January 2020 Accepted 11 May 2020 Published
Event Location:	Atlanta, GA, United States
Date range:	22 - 26 March 2020
Item ID:	39529
Date Deposited:	05 Sep 2025 13:31
Last Modified:	05 Sep 2025 13:44
URI:	https://research.gold.ac.uk/id/eprint/39529

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