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Make any monitor a touch screen!

Has anyone had any experience in taking a web cam, attaching it to the top of a monitor, then programming it to recognize face and hand movements, sort of how digital cameras today recognize faces, so it can be used to control a mouse. It would be sort of like having a virtual touch screen on any monitor and if someone could do this, I'd bet they'd make a lot of money.

caitlinsdad8 years ago
https://www.instructables.com/id/Back-projection-56-inch-multitouch-television./
https://www.instructables.com/id/How-to-Make-a-Cheap-Multitouch-Pad/

These have a web camera in back of the screen but you can read up on what the process would entail and figure out how to do it.
You can search for multitouchpads, which do something similar. Also you can google and find software to control the mouse with your eyes using a webcam. A lot of it's free and opensource!