Gizmodo
Fujitsu has developed a method for invisibly embedding information into printed images as small as a centimeter square. By printing a series of (hopefully) imperceptible yellow dots into an image, up to 12 digits of numeric information can be hidden, allowing a company to embed a phone number or encoded URL. Then, by taking a picture of the image with a cameraphone or PDA, special software can decode the numbers and call the company's phone number or look up their webpage. It's just in a proof-of-concept stage at the moment, but if they can jam a few more bits of data, like say a full character set instead of numbers, it could be a handy technology.
But if it's invisible, how will anyone know it's there? They'll have to make a little logo to indicate it somehow, and then it's not any better than any of the other visual hyperlinking systems out there.
Read - Fujitsu Labs Develops Technology to Embed 'Invisible' Data on Printed Image [NEAsiaOnline via TheRawFeed]
