retained. Figure 2 shows an example of Braille printing on a document retaining the text position. Thereby the user will make use of the mark-up facilities as described in the upper chapter.
Figure 2: Braille printing on a document retaining the text position
Document processing for non-visual presentation can be based on a combination of both auditory feedback, tactile notation and high-resolution tactile presentation. Through interactive analysis of documents recognition of text and graphics can possible be improved by a blind person. Instead of an automatic method a semi-automatic method can increase accessibility to fax documents.
An ongoing field study by various user organisations throughout Europe allows now to evaluate our assumptions using a prototype setup. This will help to get a clearer understanding of the speed of teaming the tactile mark-up procedure.
This work has been supported by the European Commission, DG XIII (TIDE), and project PRINT. We specially want to thank Prof. Giessner, FH Augsburg for preparing initial tactile printouts.
Puck, T.: Tactile Image Processing with TACFAX, Proceedings of CSUN 13th Annual Conference ( Los Angeles, March 17-21, 1998), in print.
Weber, G. ( 1987). Gestures as a means for the blind to interact with a computer, in Bullinger, H.-J. (ed.) Human-Computer Interaction INTERACT'87, North Holland:Amsterdam, pp.593-595.