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Alec G. Ostrander

dblp:256/4408 · DBLP profile ↗
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1ranked-venue papers
0as first author
0since 2021 · last 2020
—ORCID · unresolved

Domains — the database's venue-derived domains; a paper can count in several

Graphics, computer vision, multimedia, augmented reality and games · 1

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Computer graphics and multimedia
1 paper
Virtual and augmented reality · 100%

Topics — the 4 heaviest of 5, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Virtual and augmented reality
locomotion interfaces
0.412020
Teleporting through virtual environments: Effects of path scale and environment scale on spatial updating · IEEE Trans. Vis. Comput. Graph. 2020
Virtual and augmented reality › locomotion
teleportation
0.412020
Teleporting through virtual environments: Effects of path scale and environment scale on spatial updating · IEEE Trans. Vis. Comput. Graph. 2020
Virtual and augmented reality › navigation
landmark-based navigation
0.112020
Teleporting through virtual environments: Effects of path scale and environment scale on spatial updating · IEEE Trans. Vis. Comput. Graph. 2020
Virtual and augmented reality
navigation
0.112020
Teleporting through virtual environments: Effects of path scale and environment scale on spatial updating · IEEE Trans. Vis. Comput. Graph. 2020

Methods — techniques the papers use, named apart from their topics

triangle completion task · 0.4
YearPublicationVenuePosition
2020 Teleporting through virtual environments: Effects of path scale and environment scale on spatial updating
abstract
Virtual reality systems typically allow users to physically walk and turn, but virtual environments (VEs) often exceed the available walking space. Teleporting has become a common user interface, whereby the user aims a laser pointer to indicate the desired location, and sometimes orientation, in the VE before being transported without self-motion cues. This study evaluated the influence of rotational self-motion cues on spatial updating performance when teleporting, and whether the importance of rotational cues varies across movement scale and environment scale. Participants performed a triangle completion task by teleporting along two outbound path legs before pointing to the unmarked path origin. Rotational self-motion reduced overall errors across all levels of movement scale and environment scale, though it also introduced a slight bias toward under-rotation. The importance of rotational self-motion was exaggerated when navigating large triangles and when the surrounding environment was large. Navigating a large triangle within a small VE brought participants closer to surrounding landmarks and boundaries, which led to greater reliance on piloting (landmark-based navigation) and therefore reduced-but did not eliminate-the impact of rotational self-motion cues. These results indicate that rotational self-motion cues are important when teleporting, and that navigation can be improved by enabling piloting.
Jonathan W. Kelly, Alec G. Ostrander, Alex F. Lim, Lucia A. Cherep, Stephen B. Gilbert
IEEE Trans. Vis. Comput. Graph.2