We consider the fitting of tensor product parametric spline surfaces to gridded data. The continuity of the surface is provided by the basis chosen. When tensor product splines are used with gridded data, the surface fitting problem decomposes into a sequence of curve fitting processes, making the computations particularly efficient. The use of a hierarchical representation for the surface adds further efficiency by adaptively decomposing the fitting process into subproblems involving only a portion of the data. Hierarchy also provides a means of storing the resulting surface in a compressed format. Our approach is compared to multiresolution analysis and the use of wavelets.
Recommendations
Surface fitting with cyclide splines
The cyclide spline surface is a G 1 smooth piecewise surface composed of Dupin cyclide patches, thus inheriting several favorable geometric properties of the Dupin cyclide, such as the closeness under offset operation. Due to the lack of shape ...
Periodic t-splines and tubular surface fitting
Proceedings of the 7th international conference on Curves and SurfacesThis paper discusses a special type of T-spline surfaces called periodic T-splines that are closed in one parameter direction, and their application in tubular surface fitting. First, a global representation is proposed for representing periodic T-...
Surface approximation with rational B-splines
Many modern geometric modelers use nonuniform rational B-spline curves and surfaces as their canonical representations. Rational B-splines are a versatile representation, encompassing integral B-splines and the basic classical primitives such as conics, ...