Braille OCR development

Question

hi evry1, ive to develop an OCR for Braille language. Incase if u dont know about Braille; it's used by the blinds. Each character is a combination of 6 dots. what i need is a system that can recognize these characters from a scanned image of the original Braille text. The real problem is the denoising and the segmantation. If any ones interested, i can upload an image sample as well. My last request is to inquire about which language to use; VB.NET or C#. Ive heard that C# is faster for image processing as it uses "unsafe blocks". is this true? I would really appreciate any help on this. thanx in advance!