Familiar Face detection is an artificial intelligence feature used in security cameras and surveillance systems to automatically recognize and label individuals who have previously been identified and stored in a database. By analyzing facial features, the system distinguishes between known and unknown persons, helping to reduce false alarms and enhance security monitoring. This technology is commonly used in smart home security, access control, and enterprise surveillance to provide real-time alerts when familiar or unfamiliar faces are detected. Familiar Face detection raises privacy considerations, as it involves biometric data collection and storage.