Publications related to Projection (linear algebra)

Complex Wavelet Bases, Steerability, and the Marr-Like Pyramid

Michaël Unser, Dimitri Nestor Alice Van De Ville

Our aim in this paper is to tighten the link between wavelets, some classical image-processing operators, and David Marr's theory of early vision. The cornerstone of our approach is a new complex wavelet basis that behaves like a smoothed version of the Gr ...

Institute of Electrical and Electronics Engineers2008

Consistent Sampling and Signal Recovery

Michaël Unser

An attractive formulation of the sampling problem is based on the principle of a consistent signal reconstruction. The requirement is that the reconstructed signal is indistinguishable from the input in the sense that it yields the exact same measurements. ...

Institute of Electrical and Electronics Engineers2007

Stability and Delay Bounds in Heterogeneous Networks of Aggregate Schedulers

Jean-Yves Le Boudec, Gianluca Rizzo

Aggregate scheduling is one of the most promising solutions to the issue of scalability in networks, like DiffServ networks and high speed switches, where hard QoS guarantees are required. For networks of FIFO aggregate schedulers, the main existing suffic ...

2007

An Optimized Spline-Based Registration of a 3D CT to a Set of C-Arm Images

Michaël Unser, Philippe Thévenaz

We have developed an algorithm for the rigid-body registration of a CT volume to a set of C-arm images. The algorithm uses a gradient-based iterative minimization of a least-squares measure of dissimilarity between the C-arm images and projections of the C ...

Hindawi Publishing Corporation2006

A Flexible Technique for Accurate Omnidirectional Camera Calibration and Structure from Motion

Roland Siegwart, Davide Scaramuzza

In this paper, we present a flexible new technique for single-viewpoint omnidirectional camera calibration. The proposed method only re-quires the camera to observe a planar pattern shown at a few different orienta-tions. Either the camera or the planar pa ...

2006

An Extension of Oblique Projection Sampling Theorem

Michaël Unser

In this paper, we discuss the sampling problem without a condition that was assumed in conventional sampling theorems. This means that we cannot perfectly reconstruct all functions in the reconstruction space. The perfect reconstruction is possible only fo ...

SampTA2005

Exponential-Spline Wavelet Bases

Michaël Unser, Ildar Khalidov

We build a multiresolution analysis based on shift-invariant exponential B-spline spaces. We construct the basis functions for these spaces and for their orthogonal complements. This yields a new family of wavelet-like basis functions of

L _{ 2 }

, wit ...

IEEE2005

Generalized L-Spline Wavelet Bases

Michaël Unser, Thierry Blu, Ildar Khalidov

We build wavelet-like functions based on a parametrized family of pseudo-differential operators

L _{ v }

that satisfy some admissibility and scalability conditions. The shifts of the generalized B-splines, which are localized versions of the Green func ...

SPIE2005

Equality Set Projection: A new algorithm for the projection of polytopes in halfspace representation

Colin Neil Jones

In this paper we introduce a new algorithm called Equality Set Projection (ESP) for computing the orthogonal projection of bounded, convex polytopes. Our solution addresses the case where the input polytope is represented as the intersection of a finite nu ...

Cambridge University Engineering Dept2004

Conducting Polymers Containing In-Chain Metal Centers: Homogeneous Charge Transport through a Quaterthienyl-Bridged {Os(tpy)2} Polymer

Ulf Anders Hagfeldt

Electron transport in electrochem. polymd. films of a bithienyl-substituted {Os(tpy)2} complex has been studied. The voltammetric response assocd. with the Os2+/3+ process is unusually ideal under both semi-infinite linear and finite, diffusion conditions. ...

2003

Projection (linear algebra)

Graph Chatbot

Chat with Graph Search

Complex Wavelet Bases, Steerability, and the Marr-Like Pyramid

Consistent Sampling and Signal Recovery

Stability and Delay Bounds in Heterogeneous Networks of Aggregate Schedulers

An Optimized Spline-Based Registration of a 3D CT to a Set of C-Arm Images

A Flexible Technique for Accurate Omnidirectional Camera Calibration and Structure from Motion

An Extension of Oblique Projection Sampling Theorem

Exponential-Spline Wavelet Bases

Generalized L-Spline Wavelet Bases

Equality Set Projection: A new algorithm for the projection of polytopes in halfspace representation

Conducting Polymers Containing In-Chain Metal Centers: Homogeneous Charge Transport through a Quaterthienyl-Bridged {Os(tpy)2} Polymer

Consistent Sampling and Signal Recovery

An Extension of Oblique Projection Sampling Theorem

Complex Wavelet Bases, Steerability, and the Marr-Like Pyramid

Exponential-Spline Wavelet Bases

Generalized L-Spline Wavelet Bases

Conducting Polymers Containing In-Chain Metal Centers: Homogeneous Charge Transport through a Quaterthienyl-Bridged {Os(tpy)2} Polymer

Equality Set Projection: A new algorithm for the projection of polytopes in halfspace representation

An Optimized Spline-Based Registration of a 3D CT to a Set of C-Arm Images

A Flexible Technique for Accurate Omnidirectional Camera Calibration and Structure from Motion

Stability and Delay Bounds in Heterogeneous Networks of Aggregate Schedulers