The Sony Image Sensor used on the Pixel 6 Pro (and not the Pixel 6) has a technology that would allow the phone to create depth maps of Pixel users' faces.
All along we've been saying that ifwere to add Face unlock to the Pixel 6 Pro, it would have to be the less secure 2D version. That's because without adding certain hardware features, creating a depth map of a user's face would be out of the question. And matching up a flat image of a user's face with a 2D image would allow someone to take a photo of a user's face and use it to trick Face unlock into unlocking a device.
Too bad there isn't a way to generate a depth map of your face without requiring all of that hardware used on the iPhone's Face ID and the Pixel 4 series' Face unlock. Well, according tobe a way for the Pixel 6 Pro to make this work. It also explains why rumors of a facial recognition system coming in a future Pixel Feature Drop usually involve the Pixel 6 Pro and not the Pixel 6.The Pixel 6 Pro uses the Sony IMX 663 imaging sensor vs the Pixel 6's IMX355.
, the company explains how a depth map for Portrait Mode can be created with just one camera."To compute depth we can use a stereo algorithm. The Pixel 2 doesn't have dual cameras, but it does have a technology called Phase-Detect Auto-Focus pixels, sometimes called dual-pixel autofocus . That's a mouthful, but the idea is pretty simple."
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