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- W2045503467 abstract "Parametric piecewise-cubic functions are used throughout the computer graphics industry to represent curved shapes. For many applications, it would be useful to be able to reliably derive this representation from a closely spaced set of points that approximate the desired curve, such as the input from a digitizing tablet or a scanner. This paper presents a solution to the problem of automatically generating efficient piecewise parametric cubic polynomial approximations to shapes from sampled data. We have developed an algorithm that takes a set of sample points, plus optional endpoint and tangent vector specifications, and iteratively derives a single parametric cubic polynomial that lies close to the data points as defined by an error metric based on least-squares. Combining this algorithm with dynamic programming techniques to determine the knot placement gives good results over a range of shapes and applications." @default.
- W2045503467 created "2016-06-24" @default.
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- W2045503467 date "1983-07-01" @default.
- W2045503467 modified "2023-10-17" @default.
- W2045503467 title "Curve-fitting with piecewise parametric cubics" @default.
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- W2045503467 doi "https://doi.org/10.1145/800059.801153" @default.
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