Imagine you’ve got a bunch of people sitting around a table with their various mobile display devices, and you want these devices to act together. Maybe you’d like them to be peepholes into a single larger display, revealing different sections of the display as you move them around the table. Or maybe you want to be able to drag and drop across these devices with finger gestures. HuddleLamp lets you do all this.

How does it work? Basically, a 3D camera sits above the tabletop, and watches for your mobile displays and your hands. Through the magic of machine vision, a server sends the right images to each screen in the group. (The “lamp” in HuddleLamp is a table lamp arranged above the space with a 3D camera built into it.)

A really nice touch is that the authors also provide JavaScript objects that you can embed into web apps to enable devices to join the group without downloading special software. A new device will flash an identifying pattern that the computer vision routine will recognize. Once that’s done, the server starts sending the correct parts of the overall display to the new device.

The video, below the break, demonstrates the possible interactions.

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