四元数(Quaternion)相关的介绍材料非常多,这里针对其中几个实用问题进行阐述。
四元数初步
相关介绍可参考此文。
相对于复数的二维空间表示,四元数可理解为一种四维空间表示。四元数是由一个实数和三个元素组成: 三个元素之间有如下关系: 四元数乘法不具有交换律,例如: 四元数的共轭定义为:
四元数运算
四元数与刚体姿态表示
未完待续……
四元数插值
四元数与黎曼流形
其它参考
探讨四元数变换与距离的相关帖子:
- Quaternion axis and angles
- Angular Distance Between Quaternions
- Finding Maximum Euclidean distance between two quaternions
- Distance between quaternion with opposite signs
- Find Double of Distance Between 2 Quaternions
- Rotation distance
- Error measure between two rotations when one matrix might not be a valid rotation
- Comparing two rotation matrices
- Quaternion distance
- Quaternion and Riemannian manifold
- Quaternion Exponential Map - Lie group vs. Riemannian Manifold
- What is Rotational on a Riemannian Manifold?
来源:CSDN
作者:止于至玄
链接:https://blog.csdn.net/philthinker/article/details/103358349