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

doi:10.1145/3242587.3242588

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

Institute of Computer Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-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 language	English
Title of host publication	UIST 2018 - Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology
Publisher	Association for Computing Machinery, Inc
Pages	927-935
Number of pages	9
ISBN (Electronic)	9781450359481
DOIs	https://doi.org/10.1145/3242587.3242588
State	Published - 11 Oct 2018
Event	31st Annual ACM Symposium on User Interface Software and Technology, UIST 2018 - Berlin, Germany Duration: 14 Oct 2018 → 17 Oct 2018

Publication series

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

Conference

Conference	31st Annual ACM Symposium on User Interface Software and Technology, UIST 2018
Country	Germany
City	Berlin
Period	14/10/18 → 17/10/18

Keywords

Facial haptics
Head-mounted displays
Normal force
Virtual reality

Access to Document

10.1145/3242587.3242588

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Chang, H. Y., Tseng, W. J., Tsai, C. E., Chen, H. Y., Peiris, R. L., & Chan, L-W. (2018). Facepush: Introducing normal force on face with head-mounted displays. In UIST 2018 - Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology (pp. 927-935). (UIST 2018 - Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology). Association for Computing Machinery, Inc. https://doi.org/10.1145/3242587.3242588

Chang, Hong Yu ; Tseng, Wen Jie ; Tsai, Chia En ; Chen, Hsin Yu ; Peiris, Roshan Lalintha ; Chan, Li-Wwei. / Facepush : Introducing normal force on face with head-mounted displays. UIST 2018 - Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology. Association for Computing Machinery, Inc, 2018. pp. 927-935 (UIST 2018 - Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology).

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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.",

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Chang, HY, Tseng, WJ, Tsai, CE, Chen, HY, Peiris, RL & Chan, L-W 2018, Facepush: Introducing normal force on face with head-mounted displays. in UIST 2018 - Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology. UIST 2018 - Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology, Association for Computing Machinery, Inc, pp. 927-935, 31st Annual ACM Symposium on User Interface Software and Technology, UIST 2018, Berlin, Germany, 14/10/18. https://doi.org/10.1145/3242587.3242588

Facepush : Introducing normal force on face with head-mounted displays. / Chang, Hong Yu; Tseng, Wen Jie; Tsai, Chia En; Chen, Hsin Yu; Peiris, Roshan Lalintha; Chan, Li-Wwei.

UIST 2018 - Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology. Association for Computing Machinery, Inc, 2018. p. 927-935 (UIST 2018 - Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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N2 - 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.

AB - 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.

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PB - Association for Computing Machinery, Inc

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Chang HY, Tseng WJ, Tsai CE, Chen HY, Peiris RL, Chan L-W. Facepush: Introducing normal force on face with head-mounted displays. In UIST 2018 - Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology. Association for Computing Machinery, Inc. 2018. p. 927-935. (UIST 2018 - Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology). https://doi.org/10.1145/3242587.3242588