Varifocal fitting measurement — in-store calibration testing
Collecting real measured fitting heights alongside AI estimates, to build an actual calibration model once there's enough data.
Claude's note on the last saved record
1. Choose a frame
Search your live catalog for the exact frame being tested.
2. Upload a photo
A clear, front-facing photo of the person being tested, looking straight at the camera with even lighting. No card or reference object needed — calibration comes from the iris itself.
PD (automatic)
3. Real fitting height (measured manually)
Fit the actual frame on the person and measure with your usual tool. This is the ground truth every AI reading gets compared against — enter exactly what you measured.
4. AI multi-sample estimate
Generates several independent AI try-on composites of this exact frame on this photo. In each one, locates the lens's top edge, bottom edge, and the pupil, and expresses the pupil's position as a percentage of that specific lens's real height — which mathematically guarantees the result can never exceed the lens itself, regardless of what the AI generates. Averages across samples, discarding statistical outliers first. Requires a frame with lens height data selected in step 1, and a photo uploaded in step 2.
Test notes (optional)
Save this test record
Saves the frame, real measured height, and every individual AI reading together.