Perceptual dimensions for a dynamic tactile display

Thrasyvoulos N Pappas, Vivien C. Tartter, Andrew G. Seward, Boris Genzer, Karen Gourgey, Ilona Kretzschmar

Research output: Contribution to journalConference articlepeer-review

10 Scopus citations

Abstract

We propose a new approach for converting graphical and pictorial information into tactile patterns that can be displayed in a static or dynamic tactile device. The key components of the proposed approach are (1) an algorithm that segments a scene into perceptually uniform segments; (2) a procedure for generating perceptually distinct tactile patterns; and (3) a mapping of the visual textures of the segments into tactile textures that convey similar concepts. We used existing digital halftoning and other techniques to generate a wide variety of tactile textures. We then conducted formal and informal subjective tests with sighted (but visually blocked) and visually-impaired subjects to determine the ability of human tactile perception to perceive differences among them. In addition to generating perceptually distinguishable tactile patterns, our goal is to identify significant dimensions of tactile texture perception, which will make it possible to map different visual attributes into independent tactile attributes. Our experimental results indicate that it is poosible to generate a number of perceptually distinguishable tactile patterns, and that different dimensions of tactile texture perception can indeed be identified.

Original languageEnglish (US)
Article number72400K
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume7240
DOIs
StatePublished - Apr 7 2009
EventHuman Vision and Electronic Imaging XIV - San Jose, CA, United States
Duration: Jan 19 2009Jan 22 2009

Keywords

  • Digital halftoning
  • Haptic perception
  • Tactile interface
  • Tactile perception

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Perceptual dimensions for a dynamic tactile display'. Together they form a unique fingerprint.

Cite this