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Title: Full coverage displays for non-immersive applications
Author: Petford, Julian
ISNI:       0000 0004 7960 8042
Awarding Body: University of St Andrews
Current Institution: University of St Andrews
Date of Award: 2019
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Full Coverage Displays (FCDs), which cover the interior surface of a room with display pixels, can create novel user interfaces taking advantage of natural aspects of human perception and memory which we make use of in our everyday lives. However, past research has generally focused on FCDs for immersive experiences, the required hardware is generally prohibitively expensive for the average potential user, configuration is complicated for developers and end users, and building applications which conform to the room layout is often difficult. The goals of this thesis are: to create an affordable, easy to use (for developers and end users) FCD toolkit for non-immersive applications; to establish efficient pointing techniques in FCD environments; and to explore suitable ways to direct attention to out-of-view targets in FCDs. In this thesis I initially present and evaluate my own "ASPECTA Toolkit" which was designed to meet the above requirements. Users during the main evaluation were generally positive about their experiences, all completing the task in less than three hours. Further evaluation was carried out through interviews with researchers who used ASPECTA in their own work. These revealed similarly positive results, with feedback from users driving improvements to the toolkit. For my exploration into pointing techniques, Mouse and Ray-Cast approaches were chosen as most appropriate for FCDs. An evaluation showed that the Ray-Cast approach was fastest overall, while a mouse-based approach showed a small advantage in the front hemisphere of the room. For attention redirection I implemented and evaluated a set of four visual techniques. The results suggest that techniques which are static and lead all the way to the target may have an advantage and that the cognitive processing time of a technique is an important consideration.
Supervisor: Nacenta, Miguel Sponsor: Engineering and Physical Sciences Research Council (EPSRC) ; SurfNet (NSERC)
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
Keywords: Human-computer interaction ; Projection ; Pointing ; Attention guidance ; Full coverage displays ; Ray-casting ; Mouse pointing ; QA76.9H85P4 ; Information display systems