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  1. 2020-10-06

    Designing Mobile Multimodal Interaction for Visually Impaired and Older Adults: Challenges and Possible Solutions

    This paper presents two early studies aimed at investigating issues concerning the design of multimodal interaction based on voice commands and one-hand mid-air gestures - with mobile technology specifically designed for visually impaired and elderly users. These studies were carried out on a new device allowing enhanced speech recognition (including lip movement analysis) and mid-air gesture interaction on Android operating system (smartphone and tablet PC). We discuss the initial findings and challenges raised by these novel interaction modalities, and in particular the issues regarding the design of feedback and feedforward, the problem of false positives, and the correct orientation and distance of the hand and the device during the interaction. Finally, we present a set of feedback and feedforward solutions designed to overcome the main issues highlighted.

    JVRB, 16(2019), no. 2.

EuroVR 2016
  1. 2021-05-04

    Evaluating the Effects of Visual Fidelity and Magnified View on User Experience in Virtual Reality Games

    Virtual reality has been becoming more affordable in recent years. This led to more content specifically developed for this medium. Training with virtual reality is one of the promising areas in terms of the benefits. Virtual reality properties may affect user performance. This study aims at exploring effects of visual fidelity (high and low) and view zoom (normal and magnified) on task performance in virtual reality. Effects of visual fidelity have previously been explored but yielded different results based on the task design. Effects of view zoom on task performance haven’t been explored yet. An inspection task in virtual reality was developed and a user study was performed with 15 participants. Results indicated that low visual fidelity led to better task performance whereas view zoom did not have an effect on the performance.

    JVRB, (16)2019, no. 1.