Camera Calibration

Solve lens distortion and perspective for the active camera. Run before alignment.

The Camera Calibration dialog computes the lens correction (distortion + perspective) for the active camera. Do this first, before Camera Alignment, alignment assumes calibration is in place.

When it opens

Camera panel → Calibrate Lens. Or Device Settings → Camera area.

What you see

Frame size display at the top (camera's native pixel dimensions).
A list of point-pair rows. Each has Image X, Image Y (pixels), Ref X, Ref Y (mm, coordinates on a reference grid).
A solved-metrics summary: Quality (%), RMSE (px), Scale, Rotation (deg), Translation (px).

Buttons

Add Point
Solve
Save Calibration
Reset Saved
Close

Each row above the minimum (3+ total) has a remove button.

Workflow

Print or set up a calibration target (a regular grid of dots or crosses with known spacing).
Place it in the camera's view.
For at least 2 points (more is better), enter:
- Image X / Y: the pixel location in the camera image.
- Ref X / Y: the real-world spacing on the target (e.g. dot 3,4 on a 10 mm grid is at 30, 40).
Solve.
Save Calibration.

Notes

Frame size is auto-populated from the live overlay or the saved calibration.
Calibration is per-camera and per-lens. Swap lenses or zoom levels → redo calibration.
Reset Saved clears the saved calibration on the profile but does not affect the dialog's current points.