Calibration

Why calibrate?

Default Kinect intrinsics are a reasonable starting point, but calibration improves scale accuracy.

Chessboard calibration

Capture 10–20 images of a printed chessboard at different angles and distances.

Run:

python -m kinect_forge calibrate --images calib/*.png --rows 7 --cols 9 --square-size 0.025 \
  --output intrinsics.json

Then use the output:

python -m kinect_forge capture --output scans/calibrated --frames 200 \
  --intrinsics-path intrinsics.json

Notes

• rows and cols are the inner corners (not squares).
• square-size is in meters.