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Bicubic interpolation
In mathematics, bicubic interpolation is an extension of cubic interpolation for interpolating data points on a two dimensional regular grid. More at
Wikipedia
Anti-aliasing - In digital signal processing, anti-aliasing is the technique of minimizing the distortion artifacts known as aliasing when representing a high-resolution signal at a lower resolution.
Bézier surface - Bézier surfaces are a species of mathematical spline used in computer graphics, computer-aided design, and finite element modelling.
Bilinear interpolation - In mathematics, bilinear interpolation is an extension of linear interpolation for interpolating functions of two variables on a regular grid.
Tricubic interpolation - In the mathematical subfield numerical analysis, tricubic interpolation is a method for obtaining values at arbitrary points in 3D space of a function defined on a regular grid.
Cubic Hermite spline, the one-dimensional analogue of bicubic spline
Lanczos resampling - Lanczos resampling is a multivariate interpolation method used to compute new values for any digitally sampled data.
Sinc filter - In signal processing, a sinc filter is an idealized filter that removes all frequency components above a given bandwidth, leaves the low frequencies alone, and has linear phase.
Spline interpolation - In the mathematical field of numerical analysis, spline interpolation is a form of interpolation where the interpolant is a special type of piecewise polynomial called a spline.
Application of interpolation to elevation
samples
geovista.psu.edu
Interpolation
theory
sepwww.stanford.edu
Lagrange
interpolation
npac.syr.edu