It is defined in this paper as the difference between the original point-sampled surface and its base surface which is constructed as a multilevel B-splines approximation.

Terrain Reconstruction Algorithm Based on Bi-cubic B-spline Interpolation;

Four-degree B-spline method for constructing theoretical treasury yield curves;

Calculating Method of Contraction Operators in Fractal Interpolation Based on the B-spline;

B-spline Tool Offset of Free-Form Curve in Computer Numerical Control System;

Bicubic B-spline surface fitting based on data from section measurement;

Auto-adapted fitting algorithm of B-spline surface objects;

Modeling design of plow surface based on uniform B spline;

In view of the local unevenness of the spatial distribution of data from curved surface of shoe last, two ways of modeling the digitalized curve of shoe last are investigated by using uniform B spline.

The 3 D tool surface description together with the automatic 3 D meshing methods and the contact search is carried out for the FEM numerical simulation of complicated massive forming based on the cubic B spline.