A note on cubic convolution interpolation

IEEE Trans Image Process. 2003;12(4):477-9. doi: 10.1109/TIP.2003.811493.

Abstract

We establish a link between classical osculatory interpolation and modern convolution-based interpolation and use it to show that two well-known cubic convolution schemes are formally equivalent to two osculatory interpolation schemes proposed in the actuarial literature about a century ago. We also discuss computational differences and give examples of other cubic interpolation schemes not previously studied in signal and image processing.