BU Research Blog

We would like to invite you to the next research seminar for the Centre for Games and Music Technology Research.

Title: Audio-Visual-Olfactory Resource Allocation for Tri-modal Virtual Environments

Speaker: Dr Carlo Harvey

Birmingham City University

Time: 2:00PM-3:00PM

Date: Wednesday 27 February 2019

Room: TAG02 (Tolpuddle Annex)

Abstract:

Virtual Environments (VEs) provide the opportunity to simulate a wide range of applications, from training to entertainment, in a safe and controlled manner. For applications which require realistic representations of real world environments, the VEs need to provide multiple, physically accurate sensory stimuli. However, simulating all the senses that comprise the human sensory system (HSS) is a task that requires significant computational resources. Since it is intractable to deliver all senses at the highest quality, we propose a resource distribution scheme in order to achieve an optimal perceptual experience within the given computational budgets. This talk investigates resource balancing for multi-modal scenarios composed of aural, visual and olfactory stimuli. Three experimental studies were conducted. The first experiment identified perceptual boundaries for olfactory computation. In the second experiment, participants (N = 25) were asked, across a fixed number of budgets (M = 5), to identify what they perceived to be the best visual, acoustic and olfactory stimulus quality for a given computational budget. Results demonstrate that participants tend to prioritise visual quality compared to other sensory stimuli. However, as the budget size is increased, users prefer a balanced distribution of resources with an increased preference for having smell impulses in the VE. Based on the collected data, a quality prediction model is

proposed and its accuracy is validated against previously unused budgets and an untested scenario in a third and final experiment.

We hope to see you there!