Spline Quasi‐interpolation in the Bernstein Basis and Its Application to Digital Elevation Models

Francisco J. Ariza-Lopez,Domingo Barrera,Salah Eddargani,Maria Jose Ibanez,Juan F. Reinoso

Mathematical methods in the applied sciences（2022）

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摘要

A nonstandard low‐cost spline approximation method for approximating bivariate functions is constructed. It is applied for Digital Elevation approximation and then its accuracy in the downscaling process is studied.

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关键词

altimetric error,Bernstein-Bezier coefficients,DEM,upscaling,downscaling,tensor product,quasi-interpolation

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