关于B样条曲面拟合的资料，很好很全面，从外国IEEE上下载的，供大家分享

关于数字图像的三次卷积插值，比三次样条，线性插值等更加有效-Cubic convolution interpolationfor digital image processing，it can be shown that the order of accuracy of the cubic convolution method is between that of linear interpolation and thaotf cubic splines.