空间几何变换
将(w,z)坐标系上的图像变换为(x,y)坐标系上的图像，可以表示为：
- (x,y) = T{(w,z)}
仿射变换是一种常用矩阵变换，它可以表示成矩阵的形式：
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(see the transcript file for additional information)
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