Spline quasi-interpolation in the Bernstein basis and its application to digital elevation models Ariza López, Francisco J. Barrera Rosillo, Domingo Eddargani, Salah Ibáñez Pérez, María José Reinoso, Juan F. altimetric error Bernstein–Bézier coefficients DEM 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. 2024-12-04T10:14:57Z 2024-12-04T10:14:57Z 2022-07-31 journal article Ariza-López FJ, Barrera D, Eddargani S, Ibáñez MJ, Reinoso JF. Spline quasi-interpolation in the Bernstein basis and its application to digital elevation models. Math Meth Appl Sci. 2023; 46(2): 1687-1698. doi:10.1002/mma.8602 https://hdl.handle.net/10481/97686 10.1002/mma.8602 eng http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional Wiley