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文档说明findHomography()此函数估计的转换是:
findHomography()
(来源:opencv.org)
为什么有一个s_i?它代表什么?
s_i
单应变换不应该是公正的x' = Hx吗?
x' = Hx
如文档后面所述:
单应矩阵被确定为一个尺度。因此,它被归一化,使得 h_{33}=1。
s_i规模也是如此。