Head Tracking for iPad Creates Glasses-Free 3D Display [Video]

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Posted April 11, 2011 at 3:36pm by Shalom Levytam

Jeremie Francone and Laurence Nigay from the Laboratory of Informatics of Grenoble, EHCI Research Group have demonstrating a way to create a glasses-free 3D display on the iPad.

Head-Coupled Perspective on Mobile Devices. We track the head of the user with the front facing camera in order to create a glasses-free monocular 3D display. Such spatially-aware mobile display enables to improve the possibilities of interaction.
It does not use the accelerometers and relies only on the front camera.

The demo with the targets has been inspired by the work of Johnny Lee ( http://youtu.be/Jd3-eiid-Uw ) with a Wii remote.

Take a look below...

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catsrules - April 11, 2011 at 4:37pm

Very cool. what happens when you get two heads in the camera view?

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dancj - April 11, 2011 at 5:35pm

I guess if it's clever enough it could remember which was there first and stick with that - as long as there's only one there when it starts.

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dancj - April 11, 2011 at 4:01pm

The iphone game Albert already has a similar effect - only it uses the accelerometer instead of the camera. It's very effective. What I'm really hoping though is that the iPhone 5 combines the camera method with a proper glasses free 3d display. The two working together would be just incredible

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Nick - April 11, 2011 at 4:04pm

The only thing they need to make sure, is that it re-calibrates the device everytime you play. I don't always play games with the device angled straight down and sometimes want to be able to play games in different orientations, but some don't allow you to do so because they are only set to 1 calibration.

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dancj - April 11, 2011 at 4:10pm

I don't think that would affect this as it's just for making things look nice. It'll be mote about what angle you look at it from and I'd have thought that would usually be straight on regardless of how you hold it. I expect the tricky part will be making it work in both portrait and landscape.

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Nick - April 11, 2011 at 4:26pm

Only reason I said that was because it would effect the 3D tracking if it used the accelerometer and gyroscope with the camera as well to produce the 3D rendering.

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dancj - April 11, 2011 at 5:34pm

Ah, yes. It would have to rely on just the camera.

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Nick - April 11, 2011 at 3:45pm

Now this is some cool stuff. I've seen the Wii Remote 3D, but this would be awesome if developers starting incorporating this in their games.

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