CHI '93 Proceedings of the INTERACT '93 and CHI '93 Conference on Human Factors in Computing Systems
Tangible bits: towards seamless interfaces between people, bits and atoms
Proceedings of the ACM SIGCHI Conference on Human factors in computing systems
A taxonomy for and analysis of tangible interfaces
Personal and Ubiquitous Computing
Accessibility research at the Czech Technical University
ACM SIGACCESS Accessibility and Computing
Design of Face-to-Face Multilingual Communication Environment for Illiterate People
IDGD '09 Proceedings of the 3rd International Conference on Internationalization, Design and Global Development: Held as Part of HCI International 2009
Tangible user interface for the exploration of auditory city maps
HAID'07 Proceedings of the 2nd international conference on Haptic and audio interaction design
Speech based user interface for users with special needs
TSD'05 Proceedings of the 8th international conference on Text, Speech and Dialogue
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This paper outlines a novel interaction technique allowing the visually impaired users to examine the layout of complex paper documents (e.g. a newspaper page). The document is placed on a desk in the view of a camera placed above it. The tip of user's index finger is tracked by means of algorithms of computer vision. As the user moves the finger over the document, the layout of its logical units (articles) is revealed by means of a simple sonification of their boundaries and the speech synthesis. In the paper, implementation of the test application is described and evaluated. The main advantage of our system is the direct mapping of the kinaesthetic experience to the layout of the physical document, enabling the user to employ any strategy to traverse the document. The prototype has been implemented using the ARToolKit library.