CCTV Video Analytics and Advanced Features Flashcards

What is 'video analytics' in the context of CCTV systems?

Answer: Automated software-based analysis of video content to detect events or patterns

Video analytics uses algorithms and AI to automatically analyze live or recorded video streams to detect specified events, behaviors, or objects without human intervention.

Which video analytics feature can alert operators when a person enters a prohibited area?

Answer: Perimeter intrusion / virtual zone detection

Virtual zone or perimeter intrusion detection triggers an alert when an object or person enters a defined restricted area drawn as a virtual boundary in the video.

What does 'line crossing detection' in video analytics trigger on?

Answer: Objects crossing a virtual line drawn in the camera's field of view in a specified direction

Line crossing detection triggers an alarm when an object crosses a user-defined virtual line in a specific direction within the camera's field of view.

What is 'loitering detection' in a CCTV analytics system?

Answer: An alert triggered when a person or object remains within a defined zone for longer than a set time

Loitering detection monitors the duration an object remains in a defined area, triggering an alert if it exceeds a preset time threshold.

What is 'camera tamper detection' designed to alert on?

Answer: Physical interference such as camera blocking, defocusing, or spray painting

Camera tamper detection algorithms identify when a camera has been blocked, redirected, defocused, or spray-painted to disable its view, triggering an immediate alert.

What is the primary function of 'license plate recognition (LPR)' in a CCTV system?

Answer: Automatically reading and logging vehicle license plate numbers from video

LPR (also called ANPR - Automatic Number Plate Recognition) uses OCR algorithms to read vehicle license plates from video frames and log or compare them against a database.