基于PSO算法优化B样条函数插值，对于给数据点，反算出控制顶点，构造B样条函数插值-Based on particle swarm optimization (pso) algorithm B spline function interpolation

提高算法的精确度，以及利用三次样条插值法与真实值做对比-Improve the accuracy of the algorithm, as well as cubic spline interpolation method to do comparison with the real value