PROCESSING ARBITRARY-LENGTH SIGNALS WITH MDFT FILTER BANKS Tanja Karp1, J org Kliewer2, Alfred Mertins1, and Norbert J. Fliege1 1Hamburg University of Te hnology, Tele ommuni ations Institute, 21071 Hamburg, Germany 2University Kiel, Institute for Network and System Theory, 24143 Kiel, Germany ABSTRACT In this paper, methods for pro essing arbitrary-length input signals with MDFT lter banks wi...

In this paper, we propose a re nement lter for depth maps. The lter convolutes an image and a depth map with a cross computed kernel. We call the lter joint trilateral lter. Main advantages of the proposed method are that the lter ts outlines of objects in the depth map to silhouettes in the image, and the lter reduces Gaussian noise in other areas. The e ects reduce rendering artifacts when a ...

In extended target tracking, targets potentially produce more than one measurement per time step. Multiple extended targets are therefore usually hard to track, due to the resulting complex data association. The main contribution of this paper is the implementation of a Probability Hypothesis Density (phd) lter for tracking of multiple extended targets. A general modi cation of the phd lter to ...

In this paper it is shown how estimates of local structure and orientation can be obtained using a set of spherically separable quadrature lters. The method is applicable to signals of any dimensionality the only requirement being that the lter set spans the corresponding orientation space. The estimates produced are 2:nd order tensors, the size of the tensors corresponding to the dimensionalit...

Recent work on lter banks and related expansions has revealed an interesting insight: diierent lter bank trees can be regarded as diierent ways of constructing or-thonormal bases for linear signal expansion. In particular , fast algorithms for nding best bases in an operational rate-distortion sense have been successfully used in image coding. Independently of this work, recent research has als...

We investigate the relationships among the Pad e table, continued fraction expansions and perfect reconstruction (PR) lter banks. We show how the Pad e table can be utilized to develop a new lattice structure for general two-channel bi-orthogonal perfect reconstruction (PR) lter banks. This is achieved through characterization of all two-channel bi-orthogonal PR lter banks. The parameterization...

In this paper it is shown how estimates of local structure and orientation can be obtained using a set of spherically separable quadrature lters. The method is applicable to signals of any dimensionality the only requirement being that the lter set spans the corresponding orientation space. The estimates produced are 2:nd order tensors, the size of the tensors corresponding to the dimensionalit...

In this article the design framework for an Adaptive Inverse Lattice Controller(AILC) with learning attributes, applicable to linear Auto Regressive (AR) systems, is presented. The utilized controller structure relies on the principle of Inverse Model Control (IMC) and its topology resembles that of a lattice lter. The adaptation rules depend on the iden ti edsystem dynamics through an adaptive...

This paper is concerned with the problem of designing optimal multirate lter banks. Three design criteria are considered for linear phase FIR lter banks: H 2 measure, H 1 and the mixture of them. A closed-form solution is presented for optimal H 2 lter bank design. For optimal H 1 lter bank design, two algorithms are given which involve solving the design problem using positive semi-deenite pro...