多项式拟合和三次b样条曲线拟合源代码，过关键控制点。-Polynomial fitting and cubic b-spline curve fitting source code, hit critical control points.

基于控制点的图像配准。选用多项式几何校正模型获得配准参数，双线性内插进行灰度插值。-Image registration based on the control points. Selection polynomial geometric correction model to obtain registration parameters, bilinear interpolation gray interpolation.