David S. Burch
ABSTRACT
This paper considers the development of a haptic device needed for a method of relaying 2-D texture enriched graphical information. The focus here is on the conversion of the optical, color-based representation of the formatted diagram, which is efficient for storage and distribution, to its haptic texture enriched form. For this, the device has two main components, an RGB color sensor and piezoelectric actuator, mounted in a casing that is wrapped around the finger. The resulting device has a spatial sensitivity (<2mm) comparable to natural touch (1.0mm), a temporal frequency bandwidth of 1 to 200 Hz, and can be used to output a variety of textures. The point contact device developed can also easily be expanded to the use of multiple devices on multiple fingerpads, while remaining affordable (<100) and portable (<500g).
- T.P. Way and K.E. Barner. 1997. "Automatic Visual to Tactile Translation - Part II: Evaluation of the TACTile Image Creation System." IEEE Trans. on Rehabilitation Engineering, 5 (1), 95--105.Google Scholar
Cross Ref
- M.A. Heller, M. McCarthy and A. Clark. 2005. "Pattern Perception and Pictures for the Blind." Psicologica. 26, 161--171.Google Scholar
- S. Lederman, R. Klatzky, C. Chataway and C. Summers. 1990. "Visual Mediation and the Haptic Recognition of Two-Dimensional Pictures of Common Objects." Perception and Psychophysics, 47 (1), Austin, Texas, pp. 54--64.Google ScholarCross Ref
- S. Lederman and R. Klatzky. 1997. "Relative Availability of Surface and Object Properties During Early Haptic Processing." Journal of Experimental Psychology: Human Perception and Performance, Vol 23 (6). Washington D.C., pp. 1680--1707.Google ScholarCross Ref
- J.M. Kennedy and J. Bai. 2002. "Haptic Pictures: Fit Judgments Predict Identification, Recognition Memory and Confidence." Perception, 31, 1013--1026.Google ScholarCross Ref
- P.K. Edman. Tactile Graphics. 1992. American Foundation for the Blind, New York.Google Scholar
- Thompson, L.J., Chronicle, E.P., Collins, A.F. 2003. "The Role of Pictorial Convention in Haptic Picture Perception". Perception, 32 (7), London, pp. 887--893.Google Scholar
Index Terms
- A cheap, portable haptic device for a method to relay 2-D texture-enriched graphical information to individuals who are visually impaired
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