Active Liveness Detection

Active liveness detection refers to the process of verifying the liveliness or presence of a person in real-time during biometric authentication processes. It is used to ensure that the person being authenticated is physically present and not an impersonation or a manipulated representation, such as a photograph or a video recording.

Active liveness detection involves the use of various techniques to detect and prevent spoofing attacks. These techniques often rely on analyzing dynamic facial movements, such as blinking, smiling, or head rotation, which cannot be replicated by static or recorded images. By actively prompting the user to perform specific actions during the authentication process, such as following instructions or responding to challenges, active liveness detection can enhance security and accuracy in biometric systems, reducing the risk of unauthorized access or fraudulent activities.