The world's largest casino, the Venetian in Macao, has installed 13 Vision Access 3D face readers to authenticate up to 12,000 employees as they come through the building’s main entrance at the start of a shift.

As an invisible infrared light grid is projected onto the face a camera takes a picture of the distortions in the grid pattern. This is checked against the template, which takes less than a second. Turnstiles ensure only one employee enters at a time.

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