can a video projector take input?

Can a Video projector take i开发者_StackOverflow中文版nput?.. I want to create an augmented reality application where the user will click on the buttons projected in the screen. Is this possible only with the projector ? or a camera is also needed?

I know that without camera it's not possible. But i don't know much abt the projectors that's why i am asking this question

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Projectors can only project... they work with a strong light-bulb that projects the image onto the screen/wall...

If you want some sort of input, you need a camera or another sensor. This could even be a Nintendo Wii Remote: http://johnnylee.net/projects/wii/ (Have a look at the second project there)

But your projector itself is not capable of getting input... maximum would be infrared from remote controls, but that depends on the projector

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You need something like a camera (can also be kinect or something like that) or something like a "touchable wallpaper" (don't know if there is something on the market).

Ciao! Stefan

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http://smarttech.com/us/Solutions/Education+Solutions/Products+for+education/Interactive+whiteboards+and+displays/SMART+Board+interactive+whiteboards

This is pretty well solved.