20 Aug '13, 2pm

Secretly Tag 3-D-Printed Objects With InfraStructs

Ever wanted to send secret information just by passing along an ordinary-looking object? That’s the premise of Microsoft Research’s new project, InfraStructs , which pioneers techniques for concealing identifiers inside 3-D-printed objects. Anyone with a 3-D printer can fabricate an object with coded air pockets, or voids. And then anyone with a terahertz scanner can decode the tag hidden in the object—whether it’s a shape, a line of binary, or a gray code. It’s the modern microdot. Microsoft presented the scheme at Siggraph 2013, the 40th International Conference and Exhibition on Computer Graphics and Interactive Techniques, sponsored by the Association for Computing Machinery, on 25 July. IEEE Spectrum ’s Davey Alba had Andy Wilson , a principal researcher at Microsoft Research who studies human-computer interaction, explain how InfraStructs works. Transcript: Davey Alb...

Full article: http://spectrum.ieee.org/video/consumer-electronics/gadge...

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@LimZhengWei u might b interested in this!

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