Sunday, 20 de April de 2014

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Vínculo original en blog.wired.com

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Friday, 12 de December de 2008

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Monday, 15 de December de 2008

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Monday, 15 de December de 2008

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German Security Firm Works On 3D Biometric Face Project, OLED Passports

A supplier of high-security ID products in Germany is creating a biometric 3D face-recognition tech that checks people for even the smallest change in their appearance.

But while other companies around the world are also doing this, Bundesdruckerei is the only one that eventually will place its biometric info in an OLED-based passport.

Bundesdruckerei's 3D Face Project uses a biometric system called VISOTEC Expert 300, an optical and electrical verification rig that references detailed facial features written onto a chip card.

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Using a projection of structured patterns and colored strips (see image after the jump) the system renders 3D images from a batch of super-high resolution 2D pics to measure facial textures and geometry.

Because it's supposed to discern between millions of people, the high-resolution data needs to be at least at a pixel resolution of 491 x 656. The way your skin is checked is through an algorithm that compares small blocks of random surfaces in 'local correlations' or rather, patterns of skin that should go together. The pictures of the people in the latest tests were taken with a Minolta Vivid camera with a high 900/910 sensor.

Early tests have shown the end-chip to consistently replicate a human's face with an error rate at less than .05%. That's pretty good, but the ideal rate is at least at .025%.

Innovation_3dfaceIn the last two month, German airports have tested the device with volunteer travelers and they are starting to take into account precise (but natural) changes in appearance, such as aging. The project is sponsored by the European Union.

Once the biometric tests are accurate enough to use en masse, though, the real gadgety fun will begin. Bundesdruckerei will add it to a flexible Samsung OLED display and create the first e-Passport.

Oled_display Announced in a deal earlier in the year, Samsung is building a flexible AMOLED display to be part of a tough, presumably hack-proof document. The OLED will be heat-resistant and super thin and will presumably include movies of 3D biometric info, along with other visual cues.

As for how the OLED will apparently be charged, the company says it is exploring a heat-based battery system.   

The 3D Face Project is ongoing and is not expected to be completed for a least another couple of years.

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Photos: The 3D Face Project, Bundesdruckerei