Given the samples ff(x j) : j 2 J g of a function f belonging to a shift invariant subspace of L p (IR d), we give a fast reconstruction algorithm that allows the exact reconstruction of f , as long as the sampling set X = fx j : j 2 J g is suuciently dense.

This paper is dedicated to the modeling of LTI continuous time systems in digital control loops. We consider the digital control problem on non-uniform sampling periods. Moreover we assume that time varying delays that may have a variation range larger than a sampling period affect the closed-loop. Our goal is to present a unique model that is able to include these problems simultaneously and t...

Most meshes are usually produced with both topological and geometrical irregularity (arbitrary valence, non-uniform sampling). This has been seen as a flaw hindering subsequent mesh processing, because most of the other signals we manipulate everyday (sound, image, video) are acquired and processed as regularly sampled data. Three-dimensional (3D) signals, be they surfaces or volumes, are howev...