Connecting Paper and Online Worlds by Cellphone Camera

A good overview of the camera-scanning technologies in the market, inlcuding Bango, NeoMedia, and ScanBuy…
In an Intel-financed lab at Cambridge University have developed something called SpotCodes: concentric rings of black-and-white blocks representing ones and zeros. Focusing your camera phone on the code and then clicking any button launches a wireless service – for example, the ability to buy a train ticket, check an airplane’s departure time or download a ring tone from a store display.
You may already know about a commerical application of this: Bango Spot, which I mentioned here earlier this year…

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