Case · Sizewall
Body measurements from four phone photos.
Sizewall measures a person's body from photos taken with a phone. The app talks the user through four poses, takes the photos itself and returns the measurements, a 3D avatar and a history of changes. Coaching and fashion companies build it into their own services.
The waist tells you more than the scale.
A scale gives one number. It can't tell fat from muscle, or show where on the body a change happened.
BMI has the same blind spot, because it is worked out from weight and height alone. Two people of the same height and weight get the same BMI, whatever their shape.
The waist shows what the scale misses. Someone who trains can lose centimetres round the waist while their weight stays the same. Divide the waist by the height and you get a ratio you can compare between people of different heights.
The hard part is measuring the same way every time, since a tape measure depends on who holds it and where. Sizewall takes the photos itself, in the same four poses each time, and keeps the history. A coach and their client can follow the change over weeks and months.
What we built.
We built the capture app, which finds the person's pose in the browser and guides them by voice, and the service that cuts the person out of each photo.
We also built the measurement model, trained on synthetic 3D bodies, and the back end and coach dashboard.
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