在图像处理时第一次遇到透视变换，具体实现使用到矩阵对图像进行处理。对具体数学原理比较好奇，于是重新学习线性代数，这次希望在理解本质上下功夫。 Origin: 3Blue1Brown-EssenceOfLinearAlgbraUnsupported embedLinear Combinations, Span, and Basis VectorsEvery Vectior is represented vertically(vector coordinates).Think of every coordinates as a ‘scaler’ (of the unit vector in either x axis or y axis)Scaleri and j are the basis vectors of the x&y coordinate system.What if we choose differnt basis vectors?(a i +b j) is considered the Linear combination of i and jThe “span” o...