|author(s)||T. Maucher, J. Schemmel, K. Meier|
|title||The Heidelberg Tactile Vision Substitution System|
|source||In Proc. of the 6. Int. Conference on Tactile Aids, Hearing Aids and Cochlear Implants (ISAC2000), May 23-26, 2000, University of Exeter, UK|
We have built and operated a tactile vision substitution system based on 48 piezoelectric actuators assembled in a movable tactile output unit. The unit can be positioned at any location on a two dimensional surface to explore the line structure of a virtual image. This virtual tactile display (VTD) receives data either from camera systems equipped with suitable image processing capabilities or from a computer. The device has been tested with 6 blind and 4 sighted subjects.