Remember that was the vector field that looked like a rotation at the unit speed.
我们记得，这是个以单位速度旋转的向量场。
2
Based on the unit quaternion decomposition of rotation matrix, this paper puts forward an algorithm to estimate motion parameters from the space position vectors of 3d feature points.
本文基于旋转矩阵单位四元数分解定理，提出一种由3 D特征点空间位置估计运动参数的算法。
3
In a lossless unit, any change from a polarization state to another polarization state is pointed out to be corresponded to a rotation of Poincare sphere relative to the diameter.