Bilinear interpolation is a resampling method that estimates new data points within the range of a discrete set of known data points on a two-dimensional grid. It achieves this by performing linear interpolation first in one direction and then again in the perpendicular direction, effectively combining four grid points to compute the value at a given location.

Bilinear Interpolation

Bilinear interpolation

resampling method

new data points

discrete set of known data points

two-dimensional grid

Linear interpolation is a method used to estimate unknown values that fall within two known values in a dataset, assuming that the change between values is linear. It is widely used in numerical analysis and computer graphics to construct new data points within the range of a discrete set of known data points.

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