CCTV Video Analytics and Advanced Features Flashcards
6 cards from real CCTV practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CCTV Video Analytics and Advanced Features flashcards as text
What is 'video redaction' used for in CCTV footage management?
Answer: Blurring or masking sensitive areas or individuals' identities in footage before sharing
Video redaction tools blur or pixelate faces, license plates, or other sensitive information in footage before it is released in response to public records requests or litigation.
What does 'abandoned object detection' in video analytics identify?
Answer: Objects that are left behind in a scene after the person who placed them has left
Abandoned object detection identifies when an object appears in a scene and remains after the person associated with it has departed, useful for unattended bag detection in transit hubs.
In a CCTV VMS, what is a 'video wall' display used for?
Answer: Displaying multiple simultaneous camera views across a large multi-monitor setup for operator monitoring
A video wall in a security control room uses multiple monitors arranged together to simultaneously display many camera views, giving operators broad situational awareness.
What is 'smart search' or 'forensic search' functionality in a modern VMS?
Answer: Quickly finding relevant footage by searching for specific events, motions, or objects within recorded video
Smart search allows investigators to quickly locate relevant footage by specifying search criteria like motion in a zone, object type, or color, dramatically reducing review time.
What is 'de-warping' in the context of fisheye CCTV cameras?
Answer: Software correction that transforms the distorted fisheye image into normal perspective views
De-warping software corrects the circular fisheye distortion by mathematically transforming the image into one or more rectilinear perspective views for easier monitoring.
What is the purpose of 'privacy masking' on a CCTV camera?
Answer: Blocking defined areas within the camera's view from being recorded or displayed
Privacy masking allows operators to permanently black out specific areas in the camera's field of view (such as neighboring property) to avoid recording areas where there is no legal right to surveil.