Basics of Reading Fiduciary Markers

Reading and detecting fiduciary markers like ArUco markers and AprilTags involves several steps. Here is an overview of the process:

1. Camera calibration (optional but recommended)
2. Capture images or video frames
3. Preprocessing
4. Marker detection
5. Pose estimation (optional)
6. Post-processing (optional)
7. Visualization (required for AR,

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