Metalenz captures facial signature with new Polar ID imaging system for face unlock

At Qualcomm Technologies' annual Snapdragon Summit, Boston-based optical semiconductor firm Metalenz introduced Polar ID, a new consumer-grade biometric imaging system that can sense the full polarization state of light.

A press release announcing the launch describes something like a 3D facial heat map or ellipsometry, explaining that Polar ID uses meta-optic capability to capture the “polarization signature” of a human face, which includes biometric data such as facial contour details and human tissue liveness detection. “With this …

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