Multimodal AI
Liveness detection
Checking that a face, voice or other identifying sample comes from a live person rather than an imitation.
Example
A sign-in system checks whether the camera sees a live face.
Why people use it
It helps reject photos, recordings or other imitations presented as a real person.
What you'll hear
“Is there a live person in front of the camera?”
What this means for you
Use this alongside other checks of identity and permission.
Can you control it?
Sometimes
Sometimes. Your choices depend on the tool and your access. The settings available to an everyday user may differ from those available to the people running it.
Common questions
- Does passing a liveness check guarantee the person is authorized?
- No. Liveness and identity or permission are separate checks.
- Does it always ask someone to move?
- No. Some checks use a requested action, while others examine the available image without that step.
- Can it wrongly reject a real person?
- Yes. Lighting, camera quality or accessibility needs can interfere with the check.