OmniTouch – Make your own Multi-Touch World

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Chris Harrison, a PhD student in Human-Computer Interaction at Carnegie Mellon University, is full of interesting interface ideas. One of his latest projects is called OmniTouch, whose prototype design uses a shoulder-worn, depth-sensing camera/projector to create interactive “touchscreens” on anything from a nearby wall to your own forearm.

The technology is amazing: OmniTouch’s screenless interface can distinguish between a touch and a “click” (i.e., a command to do something), auto-detect the size of the interface surface (e.g., it will project a short strip onto your arm, but a large rectangle onto the wall), and even recognize the orientation of the image in 3-D space (if you tilt your screen-hand toward yourself, it will consider it “private”; a more flat orientation will be deemed “public”). But oh, that rig–are normal people really going to be walking around someday with shoulder mounted screen-guns like the Predator?

Maybe advances in microlensing technology and computational photography will allow entire flexible surfaces to function as cheap, disposable camera/projectors, so worrying about whether your OmniTouch-like device is “pointed” correctly will be moot. But that’s a long way off, and this kind of sci-fi-ized interaction seems more suited to specialty applications (warfighting? EMTs?) than mainstream adoption. That said, Harrison and his cohorts are the ones who will be building the future of human-computer interaction, not armchair observers like me–so whatever he’s working on is worth taking seriously.

About Faisal Ebrahim

Tech enthusiast, IT & Cybersecurity consultant & Sales manager. I'm passionate about staying ahead of the curve on emerging technologies, including EVs, AI, robotics, and the metaverse. For over 15 years, I've explored and shared these innovations on my blog, itechbahrain.com.

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