A camera phone based currency reader for the visually impaired
Proceedings of the 10th international ACM SIGACCESS conference on Computers and accessibility
Proceedings of the 11th international ACM SIGACCESS conference on Computers and accessibility
Recognizing currency bills using a mobile phone: an assistive aid for the visually impaired
Proceedings of the 24th annual ACM symposium adjunct on User interface software and technology
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The identification of a bank note's value is a non-trivial task for the blind and the visually impaired. A popular approach adopted by many countries in order to facilitate the visually impaired, is the impression of a high-contrast, large-print region on their bank notes. Additionally, an approach used to facilitate the blind population is the impression of unique tactile marks on bank notes. However, even when tactile marks or different sizes (e.g. Euros) are used, blind and visually impaired people have practical difficulties in identifying them.