Gaze Tracker
Estimate head pose and eye gaze direction from a webcam, with facial landmarks and eye openness measurements.
Audience analytics · Full source code
Audience Measurement Engine
Measure viewing time and gaze-based attention around a display, with facial expression estimates. Build the results into your own analytics.
$975 USD · Digital source package
Checkout and downloads via Payhip. Applicable taxes calculated at checkout. Commercial license; no support or custom integration included.
ImplementationC++ / OpenCV
Browser demoWebAssembly
DeliveryDigital download
▶ Watch the recorded demonstration
Video loads only when you choose to play it.
What the engine does
- Track faces and associate observations with viewer IDs.
- Estimate whether a viewer is looking toward a configured target.
- Aggregate viewing time across six facial expression categories.
- Inspect the detection, gaze, recognition and visualization components in the public code documentation.
Where it fits
A starting point for retail and digital signage teams building their own audience analytics. The package includes the engine and its demo; your application supplies the reporting, storage and dashboard integration.
What to validate before you buy
Gaze and expression outputs are estimates. Camera placement, lighting, distance and occlusion affect results. Expression labels do not establish a person’s internal emotional state. The demo is not a complete analytics service.
Inside the download
- Complete C++ engine source
- Pretrained networks and required assets
- Code documentation
- Emscripten build instructions
- Precompiled OpenCV WebAssembly module
- Guide to building OpenCV for WebAssembly
Inspect the public code reference to understand the implementation before purchasing.
Integration essentials
Check your build environment.
- Required skills
- C++ programming, OpenCV integration and basic understanding of neural networks.
- Browser build
- Emscripten compiles the engine to WebAssembly. Follow the included instructions and use the supplied OpenCV module.
- Other platforms
- Desktop, server, mobile and edge builds require the appropriate OpenCV dependency and build configuration. Porting and platform-specific optimization are your responsibility.
- Performance
- Depends on camera resolution, face count, models, hardware and browser. Evaluate representative conditions; the browser demo is not a benchmark for every device.
License & handover
Clear terms from the start.
You may study and modify the code, integrate it into your own product that adds substantial value, and sell that product under the software license.
The supplied source must remain private. You may not resell the software as a standalone library, SDK or toolkit. Third-party components retain their own licenses.
Installation, integration, consulting, guaranteed fixes and ongoing maintenance are not included. Updates are discretionary. Review the support policy before checkout.
Digital sales are final except where required by law. Read the purchase FAQ.
Related engines
Explore adjacent capabilities.
Each engine is a separate purchase. Combining them requires integration.
Facial Expression Recognition
Classify visible facial expressions in a camera feed and explore the estimates in your own visualization or analytics.
Face Recognition
Detect, track and re-identify faces in video. Start with a working C++ engine and adapt the matching to your application.