Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Study on Scent Media Service in Virtual Reality

발향장치를 이용한 가상현실에서의 향 미디어 서비스

  • Yu, Ok Hwan (Department of Electonic Engineering, Hoseo University) ;
  • Kim, Min Ku (Department of Electonic Engineering, Hoseo University) ;
  • Kim, Jeong-Do (Department of Electonic Engineering, Hoseo University)
  • 유옥환 (호서대학교 전자공학과) ;
  • 김민구 (호서대학교 전자공학과) ;
  • 김정도 (호서대학교 전자공학과)
  • Published : 2018.11.30
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Abstract

To augment emotion and immersion in virtual reality (VR), technological research based on scent displays have increased in recent years. The results of extensive studies have enabled the development of methods to interface head mounted displays (HMDs) with scent devices, and the possibility of VR applications of this development was identified via several demonstrations in actual VR environments. Despite all these efforts, more practical methods and conditions for scent display in VR environments are yet to be developed. To efficiently interface VR and scent, this study proposes three ways to set the position for scent display and scent conditions. The first is scent display using local positioning in the VR engine, the second is scent display using the relative distance and orientation between user and object in VR environments, and the third is scent display using time setting. In this study, we developed scent devices using a piezo actuator to validate the proposed method and successfully conducted demonstrations and experiments.

Keywords

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Fig. 1. Scent device attached to HMD

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Fig. 2. Inner structure of scent device

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Fig. 3. Structure of piezo liquid pump

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Fig. 4. Position for scent display determined by box collider

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Fig. 5. Scent positioning box determined by box collider

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Fig. 6. Sphere collider for determination of relative distance and orientation

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Fig. 7. Object for scent display determined by sphere collider

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Fig. 8. Structure diagram of scent display using real time

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Fig. 9. Structure diagram of scent display using time delay

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Fig. 10. Scent condition and scent position pre-established by local position (a) The first position, (b) The second position

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Fig. 11. Scent display of scent position in virtual reality (a) The first scent position, (b) The second position,

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Fig. 12. Scent condition pre-established by relative distance and orientation between user and sphere collider (a) a close distance and proper orientation, (b) a long distance, (c) a close distance, but improper orientation

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Fig. 13. Scent display by relative distance and orientation in virtual reality (a) a close distance and proper orientation, (b) a long distance (c) a close distance, but improper orientation

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Fig 14. Scent condition pre-established by time (a) The forest, (b) The flower garden

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Fig. 15. Scent display by time setting (a) After 10 sec, (b) After 70 sec

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