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Design of banknote is very inconvenient and unfriendly for the visually impaired users. Such as easy to take the wrong amount and the users maybe feel embarrassed with low self-esteem.
The "Braille system" has become to recognize the affairs of life for the visually impaired, but the prerequisite is the users must learn "Braille system" first.
"Touch . eyes" is using simple finger identification, even the visually impaired never learn Braille system. its use tactile recognition of digital embossing on the both sides banknote, The visually impaired users can distinguish different amount of banknote.
National Taipei University
New Taipei, Taiwan