parametric meaning

[EveningLin]

Thank you very much for your work. Here are some questions I hope you can answer (1)What are the meanings of the red boxes (2) why we should merge root pose and camera rotation ` # apply camera extrinsic (rotation) # 合并根姿势和摄影机旋转 merge root pose and camera rotation

    root_pose = root_pose.numpy()
    root_pose, _ = cv2.Rodrigues(root_pose)#旋转矩阵转换为旋转向量
    root_pose, _ = cv2.Rodrigues(np.dot(R,root_pose))
    root_pose = torch.from_numpy(root_pose).view(1,3)`