Texture Presentation by Vibratory Tactile Display Image based presentation of a tactile texture

  • Authors:
  • Yasushi Ikei;Kazufumi Wakamatsu;Shuichi Fukuda

  • Affiliations:
  • -;-;-

  • Venue:
  • VRAIS '97 Proceedings of the 1997 Virtual Reality Annual International Symposium (VRAIS '97)
  • Year:
  • 1997

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Abstract

The authors have developed a tactile display which has fifty vibrating pins to convey the surface texture sensation of object surfaces to the user's fingertip. The tactual sensation scaling was first performed to obtain a linear sensation scale of the display by means of the j.n.d. (just noticeable difference) method. One dimensional curves on the scale were displayed to investigate the human sensitivity to an intensity change rate. A tactile texture presentation method based on the image of an object surface is introduced, and two kinds of experiment were performed to discuss the feature of the method. Texture discrimination is the first one, in which the effect of texture element size to the correct separation was discussed. Then the sensations produced by the display and that by a real object were compared about several samples that had a major feature of vertical lines and the feature of not containing low frequencies. The results are summarized and the further research directions are discussed.