Re-ID hardware requirements

Re-ID requires a TD4001 Edge AI Computing Unit paired with compatible sensors. The TD4001 processes all Re-ID locally at the edge — no cloud required.

Re-ID compatible sensors

Re-ID data types

With Re-ID enabled, the system produces two additional data streams beyond basic counting:

1. Track Data (heatmaps and path analysis)

• Real-time X/Y trajectory coordinates of every person tracked

• Used to build heatmaps showing where people spend time

• Used for path flow analysis — which route did visitors follow?

• Stored per identity over their full visit duration

2. Body Data (person attributes)

• Age estimation, gender estimation, clothing colour

• Used by the Re-ID engine to match the same person across different cameras

• No facial data — privacy compliant

• Assigned anonymously to each Re-ID identity

What Re-ID enables per use case

Data output format

TDI sensors output data in XML format via HTTP/FTP push or API pull. Vemtrack receives and processes this data. Key data structures:

Basic traffic counting (all sensors, no GPU needed)

Fields: Enters, Exits, StartTime, EndTime per zone and time interval. 3D sensors with extensions also provide EntersFemaleCustomer, EntersMaleCustomer, EntersStaff, EntersIndividual.

Dwell statistics (3D sensors, no GPU needed)

Fields: NumberServed, SecondsOccupied, TotalSecondsOccupied per zone. Also provides per-person dwell records with exact entry/exit timestamps and duration in seconds.

Re-ID data (GPU required)

Per unique identity: assigned UUID, appearance attributes (age, gender, clothing colour), full movement trajectory (X/Y coordinates from all cameras), entry/exit timestamps per camera, total visit duration. This data powers unique visitor reports, journey maps, and heatmaps in Vemtrack.

Planning a Re-ID project

1. Count entrances — how many camera positions are needed to cover all entrances and key zones?

2. Estimate daily traffic — how many unique visitors per day? Use this to size the TD4001 model.

3. Select sensors — use TD2000 G3 for ceiling-mount, TD1501 G2 for tilt-mount or where ceiling access is limited

4. Size the TD4001 — match model to sensor count and daily traffic capacity (see table above)

5. Use planning tools — TD1501 Re-ID Design Tool and Coverage Calculators are available in the TDI wiki Tools section

6. Validate Re-ID accuracy — use the Re-ID Accuracy Analysis Tool post-deployment. TDI also offers a paid Re-ID Validation Report service.

TrafficPro — TDI analytics platform

Traffic Pro is TDI's standalone analytics platform — separate from Vemtrack — used for direct data visualisation from TDI sensors. Two versions available:

For Vemco Group deployments, Vemtrack is the primary platform and TrafficPro is not typically needed unless the customer specifically requests it.

TDI wiki resources (partner login required)