[CV]X ArUco Marker
The X ArUco marker is based on the ArUco marker but includes two additional pattern types. The four circles are used to create auxiliary diagonals for line fitting, while the four squares are employed for sub-pixel corner detection to achieve higher precision. Inspired by An improved ArUco marker for monocular vision ranging and ArUcoE: Enhanced ArUco Marker Combine the line fitting and sub-pixel methods. Re-projection error imporved almost 70%...