Glossary for Geospatial Science

interpolation:� Applying mathematical estimation techniques to sets of numbers to find intermediate values.� Interpolation is a collective term for various techniques of determining an approximate value of a function at a point in the domain between given points at which the function values are known.� Bilinear interpolation, for example, is based on the presumption that the value being sought lies on or near a straight line joining two known values.� (See also: convolution.)