Expanding Targets in Virtual Reality Environments: A Fitts' Law Study

Rongkai Shi, Yushi Wei, Yue Li, Lingyun Yu, Hai Ning Liang*

*Corresponding author for this work

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

Abstract

Target pointing selection is a fundamental task. According to Fitts' law, users need more time to select targets with smaller sizes. Expanding the target to a larger size is a practical approach that can facilitate pointing selection. It has been well-examined and -deployed in 2D user interfaces. However, limited research has investigated target expansion methods using an immersive virtual reality (VR) head-mounted display (HMD). In this work, we aimed to fill this gap by conducting a user study using ISO 9241-411 multi-directional pointing task to examine the effect of target expansion on target selection performance in VR HMD. Based on our results, we found that compared to not expanding the target, expanding the target width by 1.5 and 2.5 times during the movement can significantly reduce the selection time. We hope that the design and results derived from the study can help frame future work.

Original languageEnglish
Title of host publicationProceedings - 2023 IEEE International Symposium on Mixed and Augmented Reality Adjunct, ISMAR-Adjunct 2023
EditorsGerd Bruder, Anne-Helene Olivier, Andrew Cunningham, Evan Yifan Peng, Jens Grubert, Ian Williams
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages615-618
Number of pages4
ISBN (Electronic)9798350328912
DOIs
Publication statusPublished - 2023
Event2023 IEEE International Symposium on Mixed and Augmented Reality Adjunct, ISMAR-Adjunct 2023 - Sydney, Australia
Duration: 16 Oct 202320 Oct 2023

Publication series

NameProceedings - 2023 IEEE International Symposium on Mixed and Augmented Reality Adjunct, ISMAR-Adjunct 2023

Conference

Conference2023 IEEE International Symposium on Mixed and Augmented Reality Adjunct, ISMAR-Adjunct 2023
Country/TerritoryAustralia
CitySydney
Period16/10/2320/10/23

Keywords

  • Empirical studies in HCI
  • Human computer interaction (HCI)
  • Human-centered computing
  • Interaction paradigms
  • Virtual reality

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