Digital auditory braille system smart text detection glasses for the blind and visually impaired

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ABSTRACT

According to the 2018 Philippine National Blindness Survey and Eye Disease Study, conducted by the Philippine Eye Research Institute of the National Institutes of Health, 1.98 percent of the nation's population had vision impairment or blindness, making it a serious concern. As the modern world develops so quickly, assistive technology has significantly impacted persons with disabilities, leveling the playing field, giving them chances for inclusion and independence, and enhancing their quality of life. The study's primary objective is to design and construct the Digital Auditory Braille System, or DABS—a set of intelligent text-detection glasses that can help the blind and visually challenged. A Raspberry Pi was used as the primary controller in the development of the device to transform the still text from the camera to audio. Various fonts, font sizes, letter cases, and word counts were considered to test the device’s efficiency. In the 9-word test, Futura has the highest efficiency rating (91.06%), making it the best-performing font style. Font size 24 and font size 20 did not do as poorly as font size 32, which had an exceptional average of 8.84 transmitted words in the nine-word test, with 8.73 and 8.14 transmitted words, respectively. Due to its greater thickness than the other font choices, Futura is the most recognizable font on the device. With more consistency, uppercase is the most detectable font case, while font size 32 is the best detectable font size overall. Furthermore, there was an eight-second delay from capturing the text to the audio conversion.  Future researchers can enhance the design by providing an option to convert common symbols in public places, such as restrooms, elevators, etc, into audio to better aid the visually impaired.

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