# Tutorials
## Checker board
https://docs.opencv.org/4.x/d6/d55/tutorial_table_of_content_calib3d.html
https://docs.opencv.org/4.x/d9/db7/tutorial_py_table_of_contents_calib3d.html

## Aruco
https://docs.opencv.org/4.x/d2/d64/tutorial_table_of_content_objdetect.html

# Sample code
## CPP
https://github.com/opencv/opencv/tree/4.x/samples/cpp/tutorial_code/objectDetection

## Python
https://github.com/opencv/opencv_contrib/tree/4.x/modules/aruco


# Rotation
https://stackoverflow.com/questions/13823296/converting-opencv-rotation-and-translation-vectors-to-xyz-rotation-and-xyz-posit


# Camera pose to object pose
https://answers.opencv.org/question/64315/solvepnp-object-to-camera-pose/