CST Video Analytics & AI Surveillance 3

Question 1

What is 'audio analytics' in a surveillance system designed to detect?

Accepted Answer

Sound events such as gunshots, glass breaking, or aggressive speech

Answer

Microphone hardware failures

Answer

Background noise levels for video quality

Answer

Audio codec compatibility

Question 2

Which metric is commonly used to measure the accuracy of a video analytics system?

Accepted Answer

Detection rate and false positive rate

Answer

Video bitrate

Answer

Camera resolution in megapixels

Answer

Storage capacity in terabytes

Question 3

What is the purpose of 'camera tamper detection' in a video analytics system?

Accepted Answer

Alerting when a camera is obstructed, moved, or spray-painted

Answer

Monitoring camera battery levels

Answer

Automatically adjusting camera focus

Answer

Logging firmware update history

Question 4

When integrating video analytics with an access control system, what type of event can trigger an automatic door lock?

Accepted Answer

Unauthorized person detected in a restricted zone

Answer

Low storage space on the NVR

Answer

Camera firmware update completion

Answer

Network bandwidth usage threshold exceeded

Question 5

What is a key privacy consideration when deploying facial recognition in a public surveillance system in the US?

Accepted Answer

Complying with applicable local, state, and federal regulations governing biometric data collection

Answer

Ensuring cameras have sufficient megapixels

Answer

Storing face data on edge devices only

Answer

Using infrared lighting for night recognition

Question 6

What does 'scene change detection' alert a surveillance operator to?

Accepted Answer

Significant alterations in a camera's field of view, such as repositioning or masking

Answer

Changes in recording resolution

Answer

Shifts in network bandwidth allocation

Answer

Updates to user access permissions

Question 7

Which factor most directly affects the performance of AI-based video analytics in low-light conditions?

Accepted Answer

Camera image quality and sensitivity in low-light environments

Answer

The number of recording channels on the NVR

Answer

The video compression codec being used

Answer

The IP addressing scheme of the surveillance network