maemo.org - Talk - technology : Inverse Augmented reality

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Re: technology : Inverse Augmented reality

Quote:

Originally Posted by ysss (Post 754032)

Nice!

What is the minimum # of light spots required? Do you have to pack a string of christmas-tree LED arrangement for it? :D

This would be awesome for interactive display in museums and such. For commercial applications, I guess you can tie the content with the light configuration too....

Hmmm possibilities... possibilities... :D

currently, it looks for 3 brightest lightspots coming in from the camera with a close ratio on the distance between them (2:2:1)

from these, I can guestimate distance rotation and position.

The video I uploaded is using a picture shown on another n900 to supply the spots (another app would be high 5 ;))

currently there is no barcode style information in the detection routine but it has crossed my mind to allow numeric identifiers to be stored within there (using a sierpinski layout)

http://liqbase.net/n900_lightdots_50_3.png

this is the camera view showing detected elements

http://liqbase.net/liq.20100713_2318...m_run1.scr.png

Re: technology : Inverse Augmented reality

Quote:

Originally Posted by Texrat (Post 754034)

I also recall a cluster of us discussing this excitedly outside that night club during Maemo Summit 2009, how useful proximity detection could be. I knew if anyone could crack it that it would be you lcuk!

never left my head :)
I have had some crazy ideas about how to pull this off, but it seemed the simplest and most reproducible, even though it needs extra hardware.

Re: technology : Inverse Augmented reality

I just uploaded another video to youtube showing the liqmouse concept
it is not a working prototype and is just visualisation of the idea

http://www.youtube.com/watch?v=cdVqdfFdL3Q