Automatic Analysis of finger movements during tactile reading (Braille and Tactile pictures).

I found a very important paper on "Computer-based automatic finger- and speech tracking system". The claim this work is the "first technology ever for online registration and interactive and automatic analysis of finger movements during tactile reading (Braille and tactile pictures)".

The system look like below.



Please find the paper here.
https://www.assembla.com/spaces/atmr/documents/afEZtykF8r3PXJeJe5afGb/download/finger_speech.pdf