Hello, we had code developed however lost contact with the developer. We have a program that reads AR Aruco markers and gets the center of the board and rotation. However, we know that it should be very easy to get the extrinsics of this board. We would need to know the cameras position in space. Aruco has support with similar code using markerboards that we did not use in our example. However we assume the extrinsics can be extracted just the same with our code. We would need the extrinsics taken and shown and documented in the code. If you can do this and if you have a good understanding of camera extrinsics, multiple view 3d reconstruction, and 3d then let us know because we will also want to hire you for the 2nd phase of the project.