I’m a developer and working in a team with interactive system development.

Our team are having difficulty with the hardware specification in this project. I’d like to find a camera that allow us to take exactily the movement detection.
In the website http://www.touchmagix.com, i saw “advanced optical hardware sensor”, but what are the features of this hardware?

I have tested a lot of cameras here, but no one reached the goal.

I’m from Brasil and my english is not very well.

Thanks for helping.