A sign language is a gesture language that is commonly used by the hearing and vocally impaired people. As sign language has different shapes and dimensions according to the nature of the geographical area and the regional language, communication between the hearing and vocally impaired people and the normal people is extremely difficult. Many researchers have proposed various techniques to recognize the signs and to convert them into the relevant regional language. In this paper, we explore various methodologies proposed on automation of Sign Language Recognition system.

SLR, review, sign language, image processing, microcontrollers.