From Phone Video to Measurement, in Five Steps
How Step Doctor turns one phone video into gait, TUG and SPPB results: 30 body points in 3D, every frame, checked against published norms.
How does one phone video become a gait, TUG or SPPB result? In five steps.
The short version
- Record a short video with any phone camera.
- Find the person being tested on every frame, even with others in view.
- Reconstruct 30 body points in 3D, in metres, on every frame.
- Find the events: heel strikes, the six iTUG phases, each SPPB hold and chair rise.
- Report each measure against published norms, with a 3D replay to check it.
Our internal comparison with a pressure-sensor gait mat is not yet peer-reviewed; we'll publish the method and results.
