Outline Pursuits:Gaze-assisted Selection of Occluded Objects in Virtual Reality

Sidenmark, Ludwig and Clarke, Christopher and Zhang, Xuesong and Phu, Jenny and Gellersen, Hans (2020) Outline Pursuits:Gaze-assisted Selection of Occluded Objects in Virtual Reality. In: CHI '20: CHI Conference on Human Factors in Computing Systems. ACM, New York. (In Press)

[img]
Text (Outline Pursuits)
Pursuit_Selection_in_VR_8_.pdf - Accepted Version
Available under License Creative Commons Attribution-NonCommercial.

Download (4MB)

Abstract

In 3D environments, objects can be difficult to select when they overlap, as this affects available target area and increases selection ambiguity. We introduce Outline Pursuits which extends a primary pointing modality for gaze-assisted selection of occluded objects. Candidate targets within a pointing cone are presented with an outline that is traversed by a moving stimulus. This affords completion of the selection by gaze attention to the intended target's outline motion, detected by matching the user's smooth pursuit eye movement. We demonstrate two techniques implemented based on the concept, one with a controller as the primary pointer, and one in which Outline Pursuits are combined with head pointing for hands-free selection. Compared with conventional raycasting, the techniques require less movement for selection as users do not need to reposition themselves for a better line of sight, and selection time and accuracy are less affected when targets become highly occluded.

Item Type:
Contribution in Book/Report/Proceedings
Additional Information:
© ACM, 2020. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in PUBLICATION, {VOL#, ISS#, (DATE)} http://doi.acm.org/10.1145/nnnnnn.nnnnnn
Subjects:
ID Code:
140452
Deposited By:
Deposited On:
17 Jan 2020 11:05
Refereed?:
Yes
Published?:
In Press
Last Modified:
29 Feb 2020 08:36