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The object of the study is the marks for people with visual impairments, which are embedded in banknotes of various countries to identify the denominations of banknotes. The subject of the study is to determine the impact of choosing the type of marks for people with visual impairments on the recognition and identification of banknote denominations by people with blindness or low vision. The main hypothesis of the study is based on the fact that people with blindness or low vision can not or can identify different types of marks for people with visual impairment differently. Therefore, the use of some types of marks for the visually impaired on banknotes may not be effective. The study is designed to solve the problem of inefficient use of various marks for people with visual impairments on banknotes, which leads to incorrect identification of banknote denominations by people with blindness or low vision. An analysis of the tactile recognition systems of banknotes of more than 180 countries was carried out, and the main types of marks for people with visual impairments were determined. A classification of marks for people with visual impairments by application method, design, and location has been developed. Testing of various types of marks for people with visual impairments was conducted on the level of tactile sensation of the mark and the accuracy of banknote denomination identification with the involvement of people with various visual impairments, including blind people. The technique has been adapted to people with visual impairments, including blind people, and improved using the principles of fuzzy logic. As a result, it was determined that the most effective systems for identifying banknote denominations are those based on determining the number of blocks of marks printed on a banknote and using blocks of marks of sufficiently large sizes
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