Mid-Air Ultrasonic Pressure Control on Skin by Adaptive Focusing

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• 关键词：Mid ; air haptics ; Tactile ; Scattering problem ; Boundary element method
• 刊名：Lecture Notes in Computer Science
• 出版年：2016
• 出版时间：2016
• 年：2016
• 卷：9774
• 期：1
• 页码：68-77
• 全文大小：1,422 KB
• 参考文献：1.Bai, M.R., Ih, J.G., Benesty, J.: Acoustic Array Systems: Theory, Implementation, and Application. Wiley, Hoboken (2013)CrossRef
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  9.Long, B., Seah, S.A., Carter, T., Subramanian, S.: Rendering volumetric haptic shapes in mid-air using ultrasound. ACM Trans. Graph. 33(6), 181:1–181:10 (2014). http://​doi.​acm.​org/​10.​1145/​2661229.​2661257 CrossRef
  10.Makino, Y., Furuyama, Y., Inoue, S., Shinoda, H.: Mutual tele-environment: real-time 3D image transfer with force feedback. In: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, CHI 2016, ACM (2016, to appear)
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• 作者单位：Seki Inoue (16)
  Yasutoshi Makino (16) (17)
  Hiroyuki Shinoda (16) (17)
  
  16. Graduate School of Information Science and Technology, The University of Tokyo, Tokyo, Japan
  17. Graduate School of Frontier Sciences, The University of Tokyo, Chiba, Japan
  
• 丛书名：Haptics: Perception, Devices, Control, and Applications
• ISBN：978-3-319-42321-0
• 刊物类别：Computer Science
• 刊物主题：Artificial Intelligence and Robotics
  Computer Communication Networks
  Software Engineering
  Data Encryption
  Database Management
  Computation by Abstract Devices
  Algorithm Analysis and Problem Complexity
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1611-3349
• 卷排序：9774

文摘

Mid-air ultrasound can remotely invoke tactile sensation to bare hand. However, it is difficult to control it precisely because the hand itself scatters ultrasound. In this paper, a scattering model, which can be solved in real-time, is proposed and, this model can create a stronger focal point as compared to the conventional model. The proposed algorithm is based on the boundary element method and is a natural extension of the previously proposed phased array synthesis algorithms. Numerical analysis shows the relationship between the error of the surface model, computation time, and focusing performance. Psychophysical experiment shows that the internal tactile intensity of the focused ultrasound is significantly improved using the proposed adaptive focusing method. The proposed method can be used for mid-air ultrasound as a test bench of precise weak force haptic interaction.