Publication

Joint registration and super-resolution with omnidirectional images

Publications associées (54)

Joint registration and super-resolution with omnidirectional images

This paper addresses the reconstruction of high resolution omnidirectional images from multiple low resolution images with inexact registration. When omnidirectional images from low resolution vision sensors can be uniquely mapped on the 2-sphere, such a r ...

2009

l1 Regularized Super-resolution From Unregistered Omnidirectional Images

Pascal Frossard, Zafer Arican

In this paper, we address the problemof super-resolution from multiple low-resolution omnidirectional images with inexact registration. Such a problem is typically encountered in omnidirectional vision scenarios with reduced resolution sensors in imperfect ...

2009

Nonideal sampling and regularized interpolation of noisy data

Sathish Ramani

Conventional sampling (Shannon's sampling formulation and its approximation-theoretic counterparts) and interpolation theories provide effective solutions to the problem of reconstructing a signal from its samples, but they are primarily restricted to the ...

EPFL2009

Performance Analysis of a Hybrid Incremental and Cyclic A/D Conversion Principle

Pierre-André Farine, Luca Rossi, Steve Tanner

This paper presents a new hybrid A/D conversion principle based on the combination of an incremental conversion for the most significant part of the result and on a cyclic conversion for the least significant part. The proposed approach exhibits a resoluti ...

2009

Super-resolution from unregistered omnidirectional images

Pascal Frossard, Zafer Arican

This paper addresses the problem of super- resolution from low resolution spherical images that are not perfectly registered. Such a problem is typically en- countered in omnidirectional vision scenarios with re- duced resolution sensors in imperfect setti ...

2008

Local Feature Extraction for Image Super-Resolution

Loïc Arnaud Baboulaz, Pier Luigi Dragotti

The problem of image super-resolution from a set of low resolution multiview images has recently received much attention and can be decomposed, at least conceptually, into two consecutive steps as: registration and restoration. The ability to accurately re ...

IEEE2007

Regularized interpolation for noisy data

Michaël Unser, Philippe Thévenaz, Sathish Ramani

Interpolation is a vital tool in biomedical signal processing. Although there exists a substantial literature dedicated to noise-free conditions, much less is known in the presence of noise. Here, we document the breakdown of standard interpolation for noi ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2007

Regularized Interpolation for Noisy Data

Michaël Unser, Philippe Thévenaz, Sathish Ramani

IEEE2007

High-resolution MEA platform for in-vitro elecrogenic cell networks imaging

Kilian Imfeld, Luca Berdondini

Abstract—A platform based on an active-pixel-sensor electrode array (APS-MEA) for high-resolution imaging of invitro electrogenic cell cultures is presented, characterized and validated under culture conditions. The system enables full frame acquisition at ...

2007

Distributed Acquisition and Image Super-Resolution Based on Continuous Moments from Samples

Loïc Arnaud Baboulaz, Pier Luigi Dragotti

Recently, new sampling schemes were presented for signals with ﬁnite rate of innovation (FRI) using sampling kernels reproducing polynomials or exponentials. In this paper, we extend those sampling schemes to a distributed acquisition architecture in which ...

IEEE2006

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