Nara: Tracker Heatmap | Nabrio

Slot Usage: 1

Overview

Tracker Heatmap node builds a rolling occupancy heatmap from tracked object positions and draws it on the output frame.

Use this node after Tracker to visualize where objects spend time over a configurable rolling window — for example retail hotspots, queue density, or corridor usage.

Input

Input Image

image required

Image frame used as the visualization background. Connect this to a camera or upstream image output.

Tracked Objects

array required

Tracked objects from Tracker.

Rolling Time Interval

integer required

Length of the rolling window used to compute the heatmap.

Range: 0 to 1000000
Default: 1

Rolling Unit Time

string required

Time unit for the rolling interval.

Values:

SECONDS — seconds
MINUTES — minutes
HOURS (default) — hours
DAYS — days

Draw Scale

boolean required

Whether to draw the scale bar with legend on the heatmap.

Default: true

Output

Output Image

image

Output frame with the heatmap overlay (and scale bar when Draw Scale is enabled).

Slot Usage: 1

Overview

Tracker Heatmap node builds a rolling occupancy heatmap from tracked object positions and draws it on the output frame.

Use this node after Tracker to visualize where objects spend time over a configurable rolling window — for example retail hotspots, queue density, or corridor usage.