Evaluation of body-centric locomotion with different transfer functions in virtual reality

Boyu Gao, Ziiun Mai, Huawei Tu, Henry Been Lirn Duh

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

3 Citations (Scopus)

Abstract

Body-centric locomotion allows users to navigate virtual environments with body parts (e.g. head tilt, arm swing or torso lean). Transfer functions are an important determinant of the locus of such a locomotion method. However, there is little known about the effects of transfer functions on virtual locomotion with different body parts. In this work, we selected four typical transfer functions (linear function: L, power function: P, a piecewise function with constant and linear functions: CL, and a piecewise function with constant and power functions: CP) and four body parts (head, arm, torso, and knee) from existing works, and conducted an experiment to evaluate their effects on virtual locomotion under three distances (5, 10, and 15 m) in Virtual Reality (VR). Results show that (1) CP function generally led to the longest task time with a low rate of failed trials, while CL function had the shortest task time with a high rate of failed trials; (2) body parts significantly affected the rate of failed trials, but not task time and final position offset. Head and torso resulted in the lowest and highest rate of failed trials respectively; (3) body parts did not differ in User Experience Questionnaire-Short (UEQ-S), UEQ-S Pragmatic and UEQ-S Hedonic. L was rated as the highest score for UEQ-S, UEQ-S Pragmatic and UEQ-S Hedonic, but CP had the lowest score. According to the results, we provide implications of designing body-centric locomotion with different transfer functions in VR.

Original languageEnglish
Title of host publicationProceedings - 2021 IEEE Conference on Virtual Reality and 3D User Interfaces, VR 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages493-500
Number of pages8
ISBN (Electronic)9780738125565
DOIs
Publication statusPublished - Mar 2021
Externally publishedYes
Event28th IEEE Conference on Virtual Reality and 3D User Interfaces, VR 2021 - Virtual, Lisboa, Portugal
Duration: 27 Mar 20213 Apr 2021

Publication series

NameProceedings - 2021 IEEE Conference on Virtual Reality and 3D User Interfaces, VR 2021

Conference

Conference28th IEEE Conference on Virtual Reality and 3D User Interfaces, VR 2021
Country/TerritoryPortugal
CityVirtual, Lisboa
Period27/03/213/04/21

Keywords

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

ASJC Scopus subject areas

  • Human-Computer Interaction
  • Media Technology

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