7 citations · 8 across the 11 of their papers we have counts for
4 papers · 1 filter
Filtered integration rules for finite Hilbert transforms
D. Occorsio, M. G. Russo, W. Themistoclakis
A product quadrature rule, based on the filtered de la Vallée Poussin polynomial approximation, is proposed for evaluating the finite Hilbert transform in [-1; 1]. Convergence resu…
Lagrange-Chebyshev Interpolation for image resizing
Donatella Occorsio, Giuliana Ramella, Woula Themistoclakis
Image resizing is a basic tool in image processing and in literature we have many methods, based on different approaches, which are often specialized in only upscaling or downscali…
Image scaling by de la Vallée-Poussin filtered interpolation
Donatella Occorsio, Giuliana Ramella, Woula Themistoclakis
We present a new image scaling method both for downscaling and upscaling, running with any scale factor or desired size. The resized image is achieved by sampling a bivariate polyn…
Some remarks on filtered polynomial interpolation at Chebyshev nodes
D. Occorsio, W. Themistoclakis
The present paper concerns filtered de la Vallée Poussin (VP) interpolation at the Chebyshev nodes of the four kinds. This approximation model is interesting for applications becau…