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Systems and methods for perceiving color-printed braille characters and predefined shapes by visually-impaired people
Systems and methods for perceiving color-printed braille characters and predefined shapes by visually-impaired people
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机译:用于视障人士感知彩色印刷的盲文字符和预定义形状的系统和方法
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摘要
The subject matter disclosed herein relates to a method and design of a system that helps visually-impaired persons to identify Braille characters or geometric shapes such as rectangle, triangle, circle, etc. A Braille character is any combination of six dots that represents an alphanumeric character. The dot of Braille character is represented using a small colored region over a surface, which can be a paper. The color of dot is distinct from the color of surface. The system contains a coupling comprising a pair of light source and light sensor. The system enables recognizing printed Braille characters through identifying distinct colored dots of Braille characters, by sensing real-time deviation in illuminance of light reflected off the surface containing the printed Braille characters. The output of the system encompasses perceivable signal.
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