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A Study on the Minimum Weight Difference Threshold in a VR Controller with Moment Variation

VR 컨트롤러의 모멘트 변화에 따른 최소 무게 차이 인지에 관한 연구

  • Baek, Mi-Seon (Dept. of Design and Engineering, Seoul National University of Science and Technology) ;
  • Kim, Huhn (Dept. of Mechanical System Design Eng., Seoul National University of Science and Technology)
  • 백미선 (서울과학기술대학교 나노IT디자인융합대학원 디자인기술융합전공) ;
  • 김헌 (서울과학기술대학교 기계시스템디자인공학과)
  • Received : 2019.11.11
  • Accepted : 2020.01.13
  • Published : 2020.02.20

Abstract

This study is about the VR controller that can provide an enhanced experience in VR by augmenting the sense of weight. In this study, the method of changing the center of gravity of the controller was used as a means of transmitting the sense of weight. The experiment was carried out with a device that could change the center of gravity to find the minimum distance at which people can perceive the difference in weight. The results showed that the weight difference between the two stimuli can be perceived at a distance of about 5 cm regardless of the position of the starting stimulus.

본 연구는 가상 물체의 무게감을 사용자에게 전달하여 몰입감 있는 가상현실 경험을 제공하는 컨트롤러에 관한 것이다. 무게감 전달의 수단으로 컨트롤러 내 무게 중심의 위치를 변화시키면 모멘트의 크기가 변화하는 개념을 활용하였다. 사용자가 무게차를 인지하는 무게 중심의 최소이동거리를 알아보기 위해 무게 중심의 위치를 변경할 수 있는 실험 장치를 제작하여 실험을 수행하였다. 그 결과, 시작 자극의 위치와 무관하게 약 5cm의 무게부 거리 차에서 두 물체 간의 무게 차이를 인지하는 것으로 나타났다. 향후 이러한 실험 결과를 반영하여 모멘트 변화에 따른 무게 인지의 최소이동거리 역치 값을 찾는 실험을 수행할 것이다.

Keywords

References

  1. Gartner, "Gartner Top 10 Strategic Technology rends for 2019", Gartner Symposium/ITxpo, 2018. 10. 15.
  2. Ramon T. Llamas, "Worldwide Augmented and Virtual Reality Hardware Forecast Update, 2019-2023: CY 2Q19," IDC, 2019.
  3. CCS Insight, "Market Forecast Virtual and Augmented Reality Devices Worldwide, 2018-2022", 2018
  4. TEGway Co., "ThermoReal", 2017. http://thermoreal.com
  5. John C. McClelland, Robert J. Teather and Audrey Girouard, "HaptoBend: Shape-Changing Passive Haptic Feedback in Virtual Reality", Proceedings of the 5th Symposium on Spatial User Interaction, SUI'17, pp.82-90, ACM, 2017.
  6. Donald Degraen, Andre Zenner and Antonio Kruuger, "Enhancing Texture Perception in Virtual Reality Using 3D-Printed Hair Structures", Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems, CHI'19, Paper No. 249, ACM, 2019.
  7. Qualcomm Technologies, Inc. (2015). "Driving the new era of immersive experiences", https://www.qualcomm.com/media/documents/files/immersive- experiences-presentation.pdf
  8. Chih-Hao Cheng et al., "GravityCup: A Liquid-based Haptics for Simulating Dynamic Weight in Virtual Reality", Proceedings of the 24th ACM Symposium on Virtual Reality Software and Technology, VRST'18, Article No. 51, pp., 2018.
  9. Andre Zenner and Antonio Kruger, "Shifty: A Weight-Shifting Dynamic Passive Haptic Proxy to Enhance Object Perception in Virtual Reality", IEEE Transactions on Visualization and Computer Graphics, Volume 23 , Issue 4, pp.1285-1294, 2017. https://doi.org/10.1109/TVCG.2017.2656978
  10. Seongkook Heo et al., "Thor's Hammer: An Ungrounded Force Feedback Device Utilizing Propeller-Induced Propulsive Force", Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems, CHI'18, Paper No. 525, 2018.
  11. Inrak Choi et al., "Grabity: A Wearable Haptic Interface for Simulating Weight and Grasping in Virtual Reality", Proceedings of the 30th Annual ACM Symposium on User Interface Software and Technology, UIST'17, pp.119-130, 2017.
  12. Jotaro Shigeyama et al., "Transcalibur: A Weight Shifting Virtual Reality Controller for 2D Shape Rendering based on Computational Perception Model", CHI '19: Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems, pp.1-11, 2019
  13. Michael Rietzler et al., "Breaking the Tracking: Enabling Weight Perception using Perceivable Tracking Offsets", Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems, CHI'18, Paper No. 128, ACM, 2018.
  14. Gustav Theodor Fechner, Davis H. Howes, and Edwin G. Boring, "Elements of psychophysics", volume 1, 1966.
  15. Seyedshams Feyzabadi et al., "Human Force Discrimination during Active Arm Motion for Force Feedback Design", IEEE Transactions on Haptics, pp.309-319, IEEE, 2013.
  16. Roberto G. de A. Azevedo et al., "On the first JND and Break in Presence of 360-degree content: An exploratory study", MMVE '19: Proceedings of the 11th ACM Workshop on Immersive Mixed and Virtual Environment Systems, pp.1-3, 2019
  17. Jiyeon Jung et al., "Absolute Threshold in Tactile Sensing of Step by Fingertip" Journal of the Korean Society of Manufacturing Technology Engineers, 27(6), pp.517-523, 2018 https://doi.org/10.7735/ksmte.2018.27.6.517