final yr project

am doing my final year in college.(hope i get out of it unscathed.)
which brings to my topic of importance at this time of my life.- "my final year project"
its called - "DEVICE CONTROL USING VISION ACQUISITION".

what i am aiming to get to here is- "an input device which uses image processing to find out what the user wants
i.e. we use

1)web cam
2)glass screen
3)users finger

to give the input. user can control any device using this(or so it is said). Each device is given its own specific symbol.
the user draws the symbol on the glass screen for the device which he wants to control. then he places his finger on the symbol to give the control input. the position of the finger on the symbol
is taken as input. then the device is controlled through the parallel port of the pc.

This project is done using MATLAB.
i use image processing & neural n/w to do this project.