Facepush: Introducing normal force on face with head-mounted displays

Hong Yu Chang, Wen Jie Tseng, Chia En Tsai, Hsin Yu Chen, Roshan Lalintha Peiris, Li-Wwei Chan

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

25 Scopus citations

Abstract

This paper presents FacePush, a Head-Mounted Display (HMD) integrated with a pulley system to generate normal forces on a user's face in virtual reality (VR). The mechanism of FacePush is obtained by shifting torques provided by two motors that press upon a user's face via utilization of a pulley system. FacePush can generate normal forces of varying strengths and apply those to the surface of the face. To inform our design of FacePush for noticeable and discernible normal forces in VR applications, we conducted two studies to identify the absolute detection threshold and the discrimination threshold for users' perception. After further consideration in regard to user comfort, we determined that two levels of force, 2.7 kPa and 3.375 kPa, are ideal for the development of the FacePush experience via implementation with three applications which demonstrate use of discrete and continuous normal force for the actions of boxing, diving, and 360 guidance in virtual reality. In addition, with regards to a virtual boxing application, we conducted a user study evaluating the user experience in terms of enjoyment and realism and collected the user's feedback.

Original languageEnglish
Title of host publicationUIST 2018 - Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology
PublisherAssociation for Computing Machinery, Inc
Pages927-935
Number of pages9
ISBN (Electronic)9781450359481
DOIs
StatePublished - 11 Oct 2018
Event31st Annual ACM Symposium on User Interface Software and Technology, UIST 2018 - Berlin, Germany
Duration: 14 Oct 201817 Oct 2018

Publication series

NameUIST 2018 - Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology

Conference

Conference31st Annual ACM Symposium on User Interface Software and Technology, UIST 2018
CountryGermany
CityBerlin
Period14/10/1817/10/18

Keywords

  • Facial haptics
  • Head-mounted displays
  • Normal force
  • Virtual reality

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