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Shape-Preserving Spline Interpolation for Specifying Bivariate Functions on Grids
September 1983 (vol. 3 no. 6)
pp. 70-79
S. Dodd, Bell Laboratories
D. McAllister, North Carolina State University
J. Roulier, University of Connecticut
Compared with other methods, this technique for smooth surface interpolation over grid data reduces the number of extraneous local optima and inflection points of the surface.

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8. HiroshiAkima, “A New Method of Interpolation and Smooth Curve Fitting Based on Local Procedures,” J. ACM Vol. 17, No. 4, pp. 589-602 Oct. 1970
9. D. F.McAllister and J. A.Roulier, “Interpolation by Convex Quadratic Splines,” Mathematics of Computation Vol. 32, No. 144, pp. 1154-1162 Oct. 1978

Citation:
S. Dodd, D. McAllister, J. Roulier, "Shape-Preserving Spline Interpolation for Specifying Bivariate Functions on Grids," IEEE Computer Graphics and Applications, vol. 3, no. 6, pp. 70-79, Sept. 1983, doi:10.1109/MCG.1983.263246
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