TD Intelligence (TDI) is one of Vemco Group's three primary sensor suppliers. TDI specialises in AI-powered people counting with Re-ID (Re-Identification) — the ability to track unique individuals across multiple cameras without facial recognition. TDI sensors integrate with Vemtrack. Source: TDI EMEA Wiki (emea.tdintelligence.wiki).

What is Re-ID?

Re-ID (Person Re-Identification) uses AI to identify the same person across different cameras — by their appearance, not their face. This enables analytics that basic counting cannot provide:

Unique visitor count

Deduplicates entries — if the same person enters and exits 3 times, they count as 1 unique visitor

Visit duration

From first camera entry to final exit, tracked across the whole site

Customer journey mapping

Which route did visitors take through the store or mall?

Heatmap visualisation

Where do people spend the most time? Based on real movement paths.

Repeat visitor detection

How many visitors came back the same day or within the week?

Cross-camera tracking

Follow a visitor from entrance → aisle → checkout without gaps

Re-ID requires a TD4001 Edge AI Computing Unit — the GPU-based unit that processes all sensor data locally. Without a TD4001, only basic counting is available.

Full product catalogue

3D sensors — TD2000 Series (Re-ID capable)

TD2000 G2

3D stereo sensor, 2nd generation. Re-ID ✅. Up to 5 sensors path-linked. Basic gender recognition.

TD2000 G3

3D stereo sensor, 3rd generation. Re-ID ✅. Up to 5 sensors path-linked. AI staff exclusion, deep learning gender, family counting, tilt mounting, 8mm high-mount lens, HD images. Requires TD4001 for advanced AI.

3D sensors — TD2000B Series (NO Re-ID)

TD2000B

Entry 3D sensor. Re-ID ❌. Indoor only. Basic counting, dwell, occupancy. Path linking up to 3 sensors. USB staff exclusion plugin.

TD2000B G2

As above plus outdoor use, passersby counting, HD images, WiFi dongle, basic gender. Path linking up to 3 sensors.

TD2000B G3

Latest B-series. Improved AI but still Re-ID ❌. See feature matrix below.

2D sensors — TD1501/TD1502 (Re-ID capable, tilt-view)

TD1501 G1 / G2

AI Image Recognition Sensor. Tilt-view (CCTV-style mount). Re-ID ✅. Counts entries, exits, and passersby from a single device. Deep learning + Re-ID built-in. Privacy-safe — no facial image storage.

TD1502 / TD1502 G2

Vertical-mount 2D sensor. Re-ID ✅.

2D sensors — TD1001/TD1002 (no Re-ID)

TD1001 / TD1002

Entry-level 2D counters. Re-ID ❌. Basic bi-directional counting only.

Edge AI Computing Unit — TD4001 Series (required for Re-ID)

TD4001 T2

1–4 sensors, <500 visitors/day

TD4001 T6

5–8 sensors, <1,000 visitors/day

TD4001 T21 / G2

9–16 sensors, <5,000 visitors/day

TD4001 GM

Up to 16 sensors — larger deployments

TD4001 Custom

Unlimited sensors, capacity depends on GPU configuration

The TD4001 processes all Re-ID analytics at the edge — no cloud dependency. It integrates directly with Vemtrack for centralized reporting.

Feature matrix — TD2000B vs TD2000 series

Feature

TD2000B

TD2000B G2/G3

TD2000 G2/G3

Deep Learning & AI

❌

✅

Outdoor use

❌

✅

Passersby counting

❌

✅

Path linking

Up to 3 sensors

Up to 5 sensors

Family counting

❌

✅

Basic gender recognition

❌

✅

AI staff exclusion

❌

✅ (TD4001 needed)

Deep learning gender

❌

✅ (TD4001 needed)

Re-ID support

❌

✅ (TD4001 needed)

Tilt mounting

❌

✅

HD images (config)

❌

✅

8mm high-mount lens

❌

✅

USB staff exclusion plugin

✅

When to use TDI vs Xovis

TDI → Vemtrack

When Re-ID, unique visitor counting, customer journey mapping, heatmaps, or repeat visit analytics are required. Multi-camera retail and mall environments. Budget-sensitive projects (2D sensors lower cost).

Xovis → Vemcount

When high-accuracy 3D counting, demographic analytics (gender/age), IoT integration, staff exclusion by badge tag, large-area coverage (PF-Series), or sensor-level data push is required.

Resources on TDI EMEA Wiki

Re-ID & Heatmap Deployment Playbook

4.8MB PDF — full deployment guide at emea.tdintelligence.wiki (partner login required)

Coverage Calculator

Online at calculator.tdintelligence.wiki + Excel calculators for TD2000 G2/G3, TD1501, TD1502, TD1001/1002

Plan Designer

Installation planning tool — available in Tools section of TDI wiki

Re-ID Accuracy Analysis Tool

Excel-based tool to validate Re-ID accuracy on deployments

TD1501 Re-ID Design Tool

Specific planning tool for TD1501 Re-ID deployments

Traffic Pro API docs

TrafficPro 3.0 API, Retail API, Mall API — full API reference in R&D Center

Remote access

RCS (Remote Control Server) at rcs-uk.tdintelligence.com — contact TDI for account

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