CCTV CCTV Video Analytics and Advanced Features 3

Question 1

What is 'video redaction' used for in CCTV footage management?

Accepted Answer

Blurring or masking sensitive areas or individuals' identities in footage before sharing

Answer

Permanently deleting footage after the retention period expires

Answer

Compressing video files to save storage space

Answer

Applying digital watermarks to prevent tampering

Question 2

What does 'abandoned object detection' in video analytics identify?

Accepted Answer

Objects that are left behind in a scene after the person who placed them has left

Answer

Vehicles that remain parked in a zone for more than 24 hours

Answer

Cameras that have been physically removed from their mounting

Answer

Storage devices that are no longer recording data

Question 3

In a CCTV VMS, what is a 'video wall' display used for?

Accepted Answer

Displaying multiple simultaneous camera views across a large multi-monitor setup for operator monitoring

Answer

Storing backup copies of video in a RAID array

Answer

A physical barrier protecting recording equipment in a control room

Answer

A method of transmitting video over long-haul WAN connections

Question 4

What is 'smart search' or 'forensic search' functionality in a modern VMS?

Accepted Answer

Quickly finding relevant footage by searching for specific events, motions, or objects within recorded video

Answer

Searching camera configuration databases for specific device settings

Answer

Encrypting footage to prevent unauthorized forensic analysis

Answer

Cataloging metadata about camera hardware in the system

Question 5

What is 'de-warping' in the context of fisheye CCTV cameras?

Accepted Answer

Software correction that transforms the distorted fisheye image into normal perspective views

Answer

Removing physical damage from a camera lens

Answer

A process for removing motion blur from fast-moving subjects

Answer

Adjusting white balance on wide-angle cameras

Question 6

What is the purpose of 'privacy masking' on a CCTV camera?

Accepted Answer

Blocking defined areas within the camera's view from being recorded or displayed

Answer

Encrypting the video stream to prevent interception

Answer

Masking the camera's identity from network scanning tools

Answer

Preventing night-vision mode from activating in residential areas