Timo Götzelmann
ABSTRACT
Tactile maps support blind and visually impaired people in orientation and to familiarize with unfamiliar environments. Interactive approaches complement these maps with auditory feedback. However, commonly these approaches focus on blind people. We present an approach which incorporates visually impaired people by visually augmenting relevant parts of tactile maps. These audiovisual tactile maps can be used in conjunction with common tablet computers and smartphones. By integrating conductive elements into 3D printed tactile maps, they can be recognized by a single touch on the mobile device's display, which eases the handling for blind and visually impaired people. To allow multiple elevation levels in our transparent tactile maps, we conducted a study to reconcile technical and physiological requirements of off-the-shelf 3D printers, capacitive touch inputs and the human tactile sense. We propose an interaction concept for 3D printed audiovisual tactile maps, verify its feasibility and test it with a user study. Our discussion includes economic considerations crucial for a broad dissemination of tactile maps for both blind and visually impaired people.
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Index Terms
- LucentMaps: 3D Printed Audiovisual Tactile Maps for Blind and Visually Impaired People
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