This project uses the ANTLR tool to convert .brf files containing MathML ASCII code into pure MathML. ANTLR generates several files by taking the NB.g4 grammar file as a parameter. The project also explores using optical character recognition to convert Braille images to text, with one tool able to convert images and PDFs to text files with 95% accuracy using pre-trained data files for languages like English, Dutch, and Spanish. The process for adding new language data files is described.

1. Antlr Project to convert .brf to Mathml:
Input file :
.brf file (MathML ASCII – nemeth code)
Output File Contents:
MathML content.

2. This project Uses Antlr tool (Another Language recognizer)

3. These are all files which get generated using antler tool taking NB.g4
(Grammar file) as parameter.
Screen shot to run antlr tool:

5. An approach to use OCR (Optical character recognition) in Converting
braille to text.
The following image shows conversion from an image to text file.
This tool can convert an image or pdf file into text file with 95% accuracy.
It has some saved .traineddata file based on languages like eng, dutch and
Spanish.

6. A .tiff can be converted into .traineddata file but how?
This link gives process to add new languages .traineddata file.
http://blog.a9t9.com/p/free-ocr-windows.html#add
Its open source code is available in VB.net.