Category Archives: Computer Vision

Cubic Spline Interpolation

Cubic spline interpolation is a simple way to obtain a smooth curve from a set of discrete points (knots). It has both C1 (first derivative) and C2 (second derivative) continuity, enabling it to produce a continuous piecewise function given a set of data points. From the algorithm detailed here I have implemented a clamped cubic spline class in C++. It is templated on the type of X and Y, allowing for use of scalar or vector types. It requires only … Continue reading

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