Development of Human Computer Interface for Visually Challenged

Abstract Today's world must be accessible to everyone regardless of a person's disabilities or impairments and one should be able to interact and connect with the world at their own comfort zone. In this model, a Raspberry Pi 3B is used to develop a Human Computer Interface to assist the visually challenged to communicate and express their thoughts and ideas. The model encompasses a Text-to-Speech module, which uses a Raspberry Pi camera module to click a picture of a printed running English text, which is scanned and recognized by Optical Character Recognition mechanism. Finally, the text recognized is converted into speech. The model also embeds a Speech-to-Text module, which converts English speech into text. Keywords: Human Computer Interaction, Raspberry Pi, Optical Character Recognition, Text-to-Speech, Speech-to- Text