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# AprilTag Tracking with Python

## Camera Calibration

First, we use OpenCV to do camera calibration.

Reference

<https://docs.opencv.org/4.x/dc/dbb/tutorial_py_calibration.html>

The calibration pattern can be downloaded from

{% embed url="<https://github.com/opencv/opencv/blob/05b15943d6a42c99e5f921b7dbaa8323f3c042c6/samples/data/chessboard.png>" %}