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Splines: A Perfect Fit for Signal and Image Processing

M. Unser

IEEE Signal Processing Magazine, vol. 16, no. 6, pp. 22-38, November 1999.


IEEE Signal Processing Society's 2000 Magazine Award

This paper attempts to fullfill three goals. The first one is to provide a tutorial on splines that is geared to a signal processing audience. The second one is to gather all their important properties, and to provide an overview of the mathematical and computational tools available; i.e., a road map for the practitioner with references to the appropriate literature. The third goal is to give a review of the primary applications of splines in signal and image processing; most of those are discussed in the final part of the paper. (Front cover).


  • p. 26, the in-place initialization of c-(N − 1) has the wrong sign. It should read c-(N − 1) = (z1 ∕ (z12 − 1)) (c+(N − 1) + z1 c+(N − 2)) instead of c-(N − 1) = (z1 ∕ (1 − z12)) (c+(N − 1) + z1 c+(N − 2)).

AUTHOR="Unser, M.",
TITLE="Splines: {A} Perfect Fit for Signal and Image Processing",
JOURNAL="{IEEE} Signal Processing Magazine",
note="{IEEE Signal Processing Society's 2000 magazine award}")

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