Based on this tutorial: http://opencv-python-tutroals.readthedocs.org/en/latest/py_tutorials/py_calib3d/py_pose/py_pose.html
I need to compute the pose of a checkerboard wrt the camera. However, It seems that while my rotation matrix is correct. My translation component seems completely off. In fact, it looks like it's a unit vector. How exactly would I scale the vector to make sure that it's the actual distance?