Heat mapping turns recorded movement into a color overlay that shows where activity concentrates and where it does not. Analysts use it to compare layouts, staffing and camera coverage over time. It summarizes groups of people rather than tracking an individual, and it depends on reliable detection.
A heat map is an analysis tool, not a camera feature that prevents anything. Its value depends on whether the underlying detection counts people correctly from that mounting height and angle.
How the map is produced
Video analytics classify each detected person or vehicle in the frame, record the position, and accumulate the results into a colored density grid over hours or weeks.
Reading it honestly
A bright patch means the camera saw repeated movement there. It does not prove intent, and a blind spot produces a cold area that looks like no activity.
Related:Commercial securityGlossary: Video management system