METHOD AND SYSTEM TO CONVERT PORTABLE DOCUMENT FORMAT FILE TO BRAILLE

摘要

The method and system to convert portable document format (PDF) file to Braille includes an electrical interactive refreshable dynamic board connected to a processor that inputs scanned text and outputs embossed Braille tactile indicia readable by anyone who can read Braille via the sense of touch. Piezoelectric actuators raise and lower Braille pins according to the translated scanned text. Moreover, the system supports Arabic language. Preferably, open source software is used for cross-platform compatibility. The GUI was developed in JAVA and the PDF conversion drivers were developed in C.

主权项

1. A computer-implemented method to convert a portable document format (PDF) file to Braille, comprising the steps of inputting a PDF file;
converting the PDF file to an image file; performing optical character recognition (OCR) on the image file, wherein text characters embedded in the image file are recognized; converting the recognized text characters to corresponding Braille codes, wherein the recognized text characters to corresponding Braille codes conversion step further comprises the step of converting Universal Character Set Transformation Format-8 (UTF-8) text to 8-Dot Unicode Braille language format, wherein the Universal Character Set Transformation Format-8 (UTF-8) text to 8-Dot Unicode Braille language format step further comprises the step of using an open source Braille translator having a library that supports literary Braille, wherein the using an open source Braille translator step further comprises the step of using open source Braille translator Liblouis, the Liblouis translator taking UNICODE or ASCII and mapping it with Braille so that each character has its own mapping so that errors are eliminated; and outputting the corresponding Braille codes to a dynamic Braille tactile display device.