High-speed Dynamic Information Environment with Airborne Ultrasound Tactile Display-Camera System and The Calibration Method(<Special Issue>Mixed Reality)

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  • Sueishi Tomohiro
    Department of Information Physics and Computing, Graduate School of Information Science and Technology, The University of Tokyo
  • Hasegawa Keisuke
    Department of Complexity Science and Engineering, Graduate School of Frontier Science, The University of Tokyo
  • Okumura Kohei
    Suzuye and Suzuye
  • Oku Hiromasa
    Faculty of Science and Technology, Gunma University
  • Shinoda Hiroyuki
    Department of Information Physics and Computing, Graduate School of Information Science and Technology, The University of Tokyo
  • Ishikawa Masatoshi
    Department of Information Physics and Computing, Graduate School of Information Science and Technology, The University of Tokyo

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Other Title
  • 空中超音波触覚ディスプレイ・カメラ系による高速ダイナミック情報環境とその校正手法(<特集>複合現実感6)
  • 空中超音波触覚ディスプレイ・カメラ系による高速ダイナミック情報環境とその校正手法
  • クウチュウ チョウオンパ ショッカク ディスプレイ ・ カメラケイ ニ ヨル コウソク ダイナミック ジョウホウ カンキョウ ト ソノ コウセイ シュホウ

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In this paper, we propose an image and tactile presentation system for quickly moving objects, high-speed dynamic information environment, and a calibration method between a camera and Airborne Ultrasound Tactile Display(AUTD), which can present tactile sensation noncontactly as focused ultrasound. We realize one example of high-speed dynamic information environment that even if an object is moving, we can use the object as a tool for human interfaces without delay by combining a high-speed gaze controller by rotational mirrors. An accuracy of position, however, is not sufficient against difference threshold between images and tactile sensation because of mainly error of position between AUTD and camera. We calibrate the AUTD-camera system by visualizing the invisible focal position using Frustrated Total Internal Reflection(FTIR). Experimental results show that estimation accuracy is better than the threshold.

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