Aplicación móvil para transcribir lenguaje Braille literario a texto en español

Abstract

People with visual disability have the need to develop new ways of learning and to be able to connect better with the world using technological tools. A mobile application “Premier” is proposed that allows them to interact with their teachers or another people without any visual disability, for example, transcribing a written text in Braille to a text in Spanish. Premier is an Android application in a smartphone allows the person without visual disability can convert a photography with a written text in Braille system to obtain a text in Spanish, using techniques such as OBR (Optical Braille Recognition) to identify each set of cells and points with form of a Braille symbol or letter. When the image is obtained, make a processing to cut the edges of the sheet to obtain the minimum noise possible in the image, apply the Perspective Transform and then make the detection of the points with the Hough Transform, split in cells according to six sections that represent a Braille symbol and finally, those symbols are compared with letters of the Spanish alphabet data base and obtain the transcribed text to send through a GPRS (General Packet Radio Service) network.