This product is called "Facial Recognition."

Link demo: facial-aws-rekognition
Main features:

• Registering a person's identity with their facial photo.
• Authenticating a recognized face.

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Notion in Vietnamese: Notion

Demo:

If you haven't registered your face, the authentication process will fail.

Let's try registering your face by taking a photo and entering your name, then choose upload.
Then, go back to the authentication page and try with a different photo of yourself.

Awesome. It worked!