An Evaluation of the Efficiency of Popular Personal Space Pointing versus Controller based Spatial Selection in VR

Sabarish Babu, Ming Han Tsai, Ting Wei Hsu, Jung Hong Chuang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We detail the results of two experiments that empirically evaluate the efficiency of spatial selection performance of popular pointing and controller based direct 3D interaction within the participants' maximum arms reach or personal space in an immersive virtual environment. In the first experiment, targets were presented in a circular configuration of 13 targets in accordance with the ISO 9241-9 Fitts' Law standard, with a target distance of 5, 9 or 18 cm and target width of 0.65, 0.85, or 1.05cm, and with each circular configuration presented in a random distance of 60%, 75% or 90% of maximum arms length of the participant. The targets were centered at eye level, and in a within-subjects protocol participants selected the targets using a pointer at the tip of the controller or at the tip of their index finger on the dominant hand in the pointing based condition. The second experiment presented each target in a similar width and distance configuration as the previous experiment, but each target also varied in depth from one trial to the next between 60%, 75% or 90% of maximum arms reach. The selections were performed in an HTC Vive head mounted display VR world, using the popular Leap Motion gesture tracking device or the Vive controller. The results of both our experiment taken together revealed that with commodity 3D input devices, participants were more efficient in spatial selection performance in the popular controller based condition, as compared to the pointing based condition. Implications for VR developers and consumers are discussed in the latter sections.

Original languageEnglish
Title of host publicationProceedings - SAP 2020
Subtitle of host publicationACM Symposium on Applied Perception
EditorsStephen N. Spencer
PublisherAssociation for Computing Machinery
ISBN (Electronic)9781450376181
DOIs
StatePublished - 12 Sep 2020
Event17th ACM Symposium on Applied Perception, SAP 2020 - Virtual, Online, United States
Duration: 17 Sep 202018 Sep 2020

Publication series

NameProceedings - SAP 2020: ACM Symposium on Applied Perception

Conference

Conference17th ACM Symposium on Applied Perception, SAP 2020
CountryUnited States
CityVirtual, Online
Period17/09/2018/09/20

Keywords

  • 3D Selection
  • Fitts' Law
  • Near Field Interaction
  • Virtual Reality

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