Cell Phone-based Wayfinding for the Visually Impaired

Cell Phone-based Wayfinding for the Visually Impaired,James Coughlan,Roberto Manduchi,Huiying Shen

Cell Phone-based Wayfinding for the Visually Impaired   (Citations: 16)
BibTex | RIS | RefWorks Download
A major challenge faced by the blind and visually impaired population is that of wayfinding - the ability of a person to find his or her way to a given destination. We propose a new wayfinding aid based on a camera cell phone, which is held by the user to find and read aloud specially designed machine-readable signs in the environment (labeling locations such as offices and restrooms). Our main technical innovation is that we have designed these machine-readable signs to be detected and located in fractions of a second on the cell phone CPU, even at a distance of several meters. A linear barcode printed on the sign is read using novel decoding algorithms that are robust to noisy images. The information read from the barcode is then read aloud using pre-recorded or synthetic speech. We have implemented a prototype system on the Nokia 7610 cell phone, and preliminary experiments with blind subjects demonstrate the feasibility of using the system as a real-time wayfinding aid.
Published in 2006.
Cumulative Annual
View Publication
The following links allow you to view full publications. These links are maintained by other sources not affiliated with Microsoft Academic Search.
Sort by: