Design and development of an indoor navigation and object identification system for the blind
Assets '04 Proceedings of the 6th international ACM SIGACCESS conference on Computers and accessibility
Waypoint navigation with a vibrotactile waist belt
ACM Transactions on Applied Perception (TAP)
Towards a 2D tactile vocabulary for navigation of blind and visually impaired
SMC'09 Proceedings of the 2009 IEEE international conference on Systems, Man and Cybernetics
Audio-haptic browser for a geographical information system
ICCHP'10 Proceedings of the 12th international conference on Computers helping people with special needs
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Mobility of blind and visually impaired people always suffers from various hindrances while walking indoor and outdoor, due to unaware distributions and properties of obstacles. In our research, we propose to use a 3D TOF camera to detect the surroundings, which not only obtains precise distance and orientation of obstacles, but also analyzes more properties (e.g. size, hanging height) through a 3D segmentation algorithm. Furthermore, a novel touch-sensitive tactile display is employed to present the 3D spatial scene into a 2D perspective. The non-visual representation let visually impaired users sense the distribution of obstacles precisely and explicitly, as well as the surroundings environments. An evaluation plan has been addressed to compare the effectiveness of audio and tactile representation, and investigate the feasibility of extending the while cane.