Sentinel Lens is a facial recognition surveillance app that uses your Android device's camera to record video in the background (with no live preview) and sends Telegram alerts when unauthorized individuals are detected, based on a configurable blacklist and whitelist. Key Features Background Recording • Discreet Capture: Record video silently in the background without any visible camera preview. • Saved Camera Footage: Automatically store recordings for later review. • Front or Back Camera: Choose either camera lens for optimal coverage. Advanced Facial Recognition • Facial Recognition Surveillance: Analyze recorded frames to identify known and unknown faces. • Configurable Watchlist: Maintain custom blacklist and whitelist entries to control alerts. Real-Time Alerts • Telegram Alert Integration: Send instant notifications via Telegram when a watchlist match is detected.