There is no distortion in product because of the rigid transform.

整个变换过程为刚性变换，产品不会发生扭曲变形。

youdao

Substituting coordinates of all pairs of points into rigid transform equations, one could use least squares to get the rigid transform matrix from image space to surgical space.

将所有点对坐标值代入刚体变换线性方程组，用最小二乘法求出从图像空间到手术空间的刚体变换矩阵，最终实现医学图像标志点的自动识别和配准。

youdao

Ideally, he would want to transform the EU into something much better than what it is today: less rigid and bureaucratic, more competitive, democratic and open to the world.

BBC: EU viewpoints on Cameron's Europe speech