Abstract
Head-worn displays (HWDs) are now becoming widely available, which will allow researchers to explore sophisticated interface designs that support rich user productivity features. In a large virtual workspace, the limited available field of view (FoV) may cause objects to be located outside of the available viewing area, requiring users to first locate an item using head motion before making a selection. However, FoV varies widely across different devices, with an unknown impact on interface usability. We present a user study to test two-step selection models previously proposed for 'peephole pointing' in large virtual workspaces on mobile devices. Using a CAVE environment to simulate the FoV restriction of stereoscopic HWDs, we compare two different input methods, direct pointing, and raycasting in a selection task with varying FoV width. We find a very strong fit in this context, comparable to the prediction accuracy in the original studies, and much more accurate than the traditional Fitts' law model. We detect an advantage of direct pointing over raycasting, particularly with small targets. Moreover, we find that this advantage of direct pointing diminishes with decreasing FoV.
Original language | English |
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Title of host publication | SUI'16 - Proceedings of the 2016 Symposium on Spatial User Interaction |
Subtitle of host publication | October 15-16, 2016 Tokyo, Japan |
Editors | Robert Teather, Evan Suma, Kyle Johnsen |
Place of Publication | New York NY USA |
Publisher | Association for Computing Machinery (ACM) |
Pages | 107-110 |
Number of pages | 4 |
ISBN (Electronic) | 9781450340687 |
DOIs | |
Publication status | Published - 2016 |
Externally published | Yes |
Event | Symposium on Spatial User Interaction 2016 - Tokyo, Japan Duration: 15 Oct 2016 → 16 Oct 2016 Conference number: 4th http://st.sigchi.org/publications/toc/sui-2016.html |
Conference
Conference | Symposium on Spatial User Interaction 2016 |
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Abbreviated title | SUI 2016 |
Country/Territory | Japan |
City | Tokyo |
Period | 15/10/16 → 16/10/16 |
Internet address |
Keywords
- Field of view
- Fitts' law
- FoV
- Head-worn display
- Hmd
- HWD
- Modelling
- Peephole pointing