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math.OC2018
Image edges resolved well when using an overcomplete piecewise-polynomial model
Michaela Novosadová, Pavel Rajmic
Used in the paper is an overcomplete piecewise-polynomial image model incorporating sparsity. The paper shows that using such a model, the edges in the image can be resolved robust…
math.OC2018
S-SPADE Done Right: Detailed Study of the Sparse Audio Declipper Algorithms
Pavel Záviška, Ondřej Mokrý, Pavel Rajmic
This technical report shows and discusses in detail how Sparse Audio Declipper (SPADE) algorithms are derived from the signal model using the ADMM approach. The analysis version (A…