October 1970 | Journal Article
A New Method of Interpolation and Smooth Curve Fitting Based on Local Procedures
Cite This Publication
Hiroshi Akima, “A New Method of Interpolation and Smooth Curve Fitting Based on Local Procedures,” Journal of the ACM (JACM) 17, Issue 4 (October 1970): 589–602. https://doi.org/https://doi.org/10.1145/321607.321609
Abstract:
A new mathematical method is developed for interpolation from a given set of data points in a plane and for fitting a smooth curve to the points. This method is devised in such a way that the resultant curve will pass through the given points and will appear smooth and natural. It is based on a piecewise function composed of a set of polynomials, each of degree three, at most, and applicable to successive intervals of the given points. In this method, the slope of the curve is determined at each given point locally, and each polynomial representing a portion of the curve between a pair of given points is determined by the coordinates of and the slopes at the points. Comparison indicates that the curve obtained by this new method is closer to a manually drawn curve than those drawn by other mathematical methods.
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Funding Information
Performing Agency
U.S. Department of Commerce
Environmental Science Services Administration
Environmental Research Laboratories (ERL)
Boulder Laboratories
Boulder, Colorado 80302
Funding Agency
U.S. Department of Commerce
Environmental Science Services Administration
Environmental Research Laboratories (ERL)
Boulder Laboratories
Boulder, Colorado 80302
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