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get_joint_rotations 函数中_invR = [email protected]这里不理解,可以解释一下吗?

Open exitNA opened this issue 2 years ago • 0 comments

for i, parent_name in enumerate(joints_hierarchy[joint_name]):
    if i == 0: continue
    _r_angles = frame_rotations[parent_name]
    R = utils.get_R_z(_r_angles[0]) @ utils.get_R_x(_r_angles[1]) @ utils.get_R_y(_r_angles[2])
    _invR = [email protected]

这段代码中从节点(leftfoot)的父节点开始一路向上计算(沿着leftknee,lefthip,hips)计算旋转矩阵,但是不理解为什么是右乘R.T?希望作者能介绍说明一下,(https://temugeb.github.io/python/motion_capture/2021/09/16/joint_rotations.html 这个博客也看了,理解了get_joint_rotations这个函数,但是还是没理解右乘R.T)。

exitNA avatar Dec 19 '22 10:12 exitNA