Degree Reduction of B-Spline Curves

摘要

This work deals with the problem of degree reducing a B-spline curve without intermediate con- version to Bezier form. Degree elevation for B-spline curves may easily be described in blossom form. We also use blossoms for the degree reduction problem, and set up least squares problems for finding the B-spline coefficients directly. We also given an application to curve fairing.