Abstract
This paper presents a text entry technique for mobile-based VR on a one-handed ambiguous keyboard. The one-handed keyboard prototype comprises an alternative 16 keys (4 × 4) custom mechanical keyboard with strong tactile bump switches, 3D printed adapted keycaps, and a camera to track which keys the user’s fingers are hovering over. This technique is an intuitive and user-centered solution that focuses on providing visual and tactile feedback in real-time, improving the typing experience and performance. For demonstration purposes, additional devices—a Samsung Galaxy S8, a Samsung Gear VR headset, and a VR hand controller—were used alongside the designed keyboard prototype. This technique has shown to be a potential extension or alternative for short-term text entry compared to standard mobile VR ray-casting selection techniques. Improvements and empirical comparisons based on user studies will compose the next stages of this research.
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Notes
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Besides the difficulty of aiming using the ray-casting technique (mainly on small objects), users have to keep the pointing steady, intersecting the desired object until the selection is confirmed by the users themselves (pressing a button) or by the system itself (dwell time). Considering that there is no physical support for users’ hands, this task becomes even more difficult [4].
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For the purposes of this study, we refer to mobile VR as those that are experienced just through active headsets. An active headset (e.g., Samsung Gear VR) provides interactivity through its electronics components and sensors. Differently, a passive headset (e.g., Google Cardboard) consists of a more simple headset that provides only viewing (non-interactive).
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References
Kopper, R., Bowman, D.A., Silva, M.G., McMahan, R.P.: A human motor behavior model for distal pointing tasks. Int. J. Hum Comput Stud. 68(10), 603–615 (2010)
Boletsis, C., Kongsvik, S.: Controller-based text-input techniques for virtual reality: an empirical comparison. Int. J. Virtual Reality 19(3), 2–15 (2019)
Dube, T.J., Arif, A.S.: Text entry in virtual reality: a comprehensive review of the literature. In: Kurosu, M. (ed.) HCII. LNCS, vol. 11567, pp. 419–437. Springer, Cham (2019). https://doi.org/10.1007/978-3-030-22643-5_33
Tu, H., Huang, S., Yuan, J., Ren, X., Tian, F.: Crossing-based selection with virtual reality head-mounted displays. In: 2019 CHI Conference on Human Factors in Computing Systems (CHI ’19). Paper 618, pp. 1–14. ACM, New York (2019)
Xu, W., Liang, H.-N., Zhao, Y., Zhang, T., Yu, D., Monteiro, D.: RingText: dwell-free and hands-free text entry for mobile head-mounted displays using head motions. IEEE Trans. Visual Comput. Graph. 25(5), 1991–2001 (2019)
Lu, X., Yu, D., Liang, H., Feng, X., Xu, W.: DepthText: leveraging head movements towards the depth dimension for hands-free text entry in mobile virtual reality systems. In: 2019 IEEE Conference on Virtual Reality and 3D User Interfaces (VR), pp. 1060–1061. IEEE (2019)
Knierim, P., Kosch, T., Groschopp, J., Schmidt, A.: Opportunities and challenges of text input in portable virtual reality. In: Extended Abstracts of the 2020 CHI Conference on Human Factors in Computing Systems (CHI EA ’20). LBW134, pp. 1–8. ACM, New York (2020)
Barrett, J., Krueger, H.: Performance effects of reduced proprioceptive feedback on touch typists and casual users in a typing task. Behav. Inf.Technol. 13(6), 373–381 (1994)
McGill, M., Boland, D., Murray-Smith, R., Brewster, S.: A dose of reality: overcoming usability challenges in VR head-mounted displays. In: 33rd Annual ACM Conference on Human Factors in Computing Systems (CHI ’15), pp. 2143--2152. ACM, New York (2015)
Walker, J., Li, B., Vertanen, K., Kuhl, S.: Efficient typing on a visually occluded physical keyboard. In: 2017 CHI Conference on Human Factors in Computing Systems (CHI ’17), pp. 5457--5461. ACM, New York (2017)
Knierim, P., Schwind, V., Feit, A.M., Nieuwenhuizen, F., Henze, N.: Physical keyboards in virtual reality: analysis of typing performance and effects of avatar hands. In: 2018 CHI Conference on Human Factors in Computing Systems (CHI ’18). Paper 345, pp. 1–9. ACM, New York (2018)
Speicher, M., Feit, A.M., Ziegler, P., Krüger, A.: Selection-based text entry in virtual reality. In: 2018 CHI Conference on Human Factors in Computing Systems (CHI ’18). Paper 647, pp. 1–13. ACM, New York (2018)
Palmeira, E., Martin, V., Moraes, I., Kopper, R., Lamounier, E., Cardoso, A.: O Uncanny Valley das Mãos Virtuais em Aplicações de Realidade Virtual Imersiva: uma Revisão Sistemática da Literatura [The Uncanny Valley of the Virtual Hands on Immersive Virtual Reality Applications: a Systematic Literature Review]. RISTI E31, 497–512 (2020)
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This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brasil (CAPES) – Finance Code 001.
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Palmeira, E. et al. (2021). One-Handed Text Entry in Mobile-Based Virtual Reality: An Ambiguous Keyboard Technique. In: Ahram, T.Z., Falcão, C.S. (eds) Advances in Usability, User Experience, Wearable and Assistive Technology. AHFE 2021. Lecture Notes in Networks and Systems, vol 275. Springer, Cham. https://doi.org/10.1007/978-3-030-80091-8_36
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