METHOD FOR CONVERTING IMAGE DATA TO VECTOR DATA

摘要

21 METHOD FOR CONVERTING IMAGE DATA TO VECTOR DATA A method is described for converting image data to vector data. The method comprises the steps of generating a vector to each of a set of points and associating each vector with the pole of a control polygon of a non-uniform rational B-spline. The set of points are associated with a surface representative of a boundary of a three-dimensional object. Part of the boundary is hidden from view. L1703/1718/02FX01