Publications related to Theoretical Analysis of Euclidean Distance Matrix Completion for Ad hoc Microphone Array Calibration

Euclidean Distance Matrices

Euclidean distance matrices (EDMs) are central players in many diverse fields including psychometrics, NMR spectroscopy, machine learning and sensor networks. However, they are not often exploited in signal processing. In this thesis, we analyze attributes ...

EPFL2013

Analysis of Descent-Based Image Registration

Pascal Frossard, Elif Vural

We present a performance analysis for image registration with gradient descent. We consider a typical multiscale registration setting where the global 2-D translation between a pair of images is estimated by smoothing the images and minimizing the distance ...

2013

Computational Methods For Structured Sparse Component Analysis of Convolutive Speech Mixtures

Hervé Bourlard, Volkan Cevher, Afsaneh Asaei

We cast the under-determined convolutive speech separation as sparse approximation of the spatial spectra of the mixing sources. In this framework we compare and contrast the major practical algorithms for structured sparse recovery of speech signal. Speci ...

2012

Computational Methods For Structured Sparse Component Analysis of Convolutive Speech Mixtures

Hervé Bourlard, Volkan Cevher, Afsaneh Asaei

We cast the under-determined convolutive speech separation as sparse approximation of the spatial spectra of the mixing sources. In this framework we compare and contrast the major practical algorithms for structured sparse recovery of speech signal. Speci ...

2012

An Efficient Algorithm for Level Set Method Preserving Distance Function

Jean-Philippe Thiran, Xavier Bresson, Dominique Zosso, Virginia Estellers Casas

The level set method is a popular technique for tracking moving interfaces in several disciplines including computer vision and fluid dynamics. However, despite its high flexibility, the original level set method is limited by two important numerical issue ...

Institute of Electrical and Electronics Engineers2012

Which similarity measure is better for analyzing protein structures in a molecular dynamics trajectory?

Fabio Pietrucci

An important step in the computer simulation of the dynamics of biomolecules is the comparison of structures in a trajectory by exploiting a measure of distance. This allows distinguishing structures which are geometrically similar from those which are dif ...

2011

Speech Acquisition in Meetings with an Audio-Visual Sensor Array

Daniel Gatica-Perez, Darren Moore, Silèye Oumar Ba

Close-talk headset microphones have been traditionally used for speech acquisition in a number of applications, as they naturally provide a higher signal-to-noise ratio -needed for recognition tasks- than single distant microphones. However, in multi-party ...

IDIAP2005

Speech Acquisition in Meetings with an Audio-Visual Sensor Array

Daniel Gatica-Perez, Darren Moore, Silèye Oumar Ba

Close-talk headset microphones have been traditionally used for speech acquisition in a number of applications, as they naturally provide a higher signal-to-noise ratio -needed for recognition tasks- than single distant microphones. However, in multi-party ...

2005

Autofocus for Digital Fresnel Holograms by Use of a Fresnelet-Sparsity Criterion

Michaël Unser

We propose a robust autofocus method for reconstructing digital Fresnel holograms. The numerical reconstruction involves simulating the propagation of a complex wave front to the appropriate distance. Since the latter value is difficult to determine manual ...

OSA2004

The Degenerate Bounded Errors-in-Variables Model

Ali H. Sayed

We consider the following problem:

\min_{x \in {\cal R}^n} \min_{\|E\| \le \eta} \|(A+E)x-b\|

, where A is an

m \times n

real matrix and b is an n-dimensional real column vector when it has multiple global minima. This problem is an errors-in-variables ...

2001

Theoretical Analysis of Euclidean Distance Matrix Completion for Ad hoc Microphone Array Calibration

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Euclidean Distance Matrices

Analysis of Descent-Based Image Registration

Computational Methods For Structured Sparse Component Analysis of Convolutive Speech Mixtures

Computational Methods For Structured Sparse Component Analysis of Convolutive Speech Mixtures

An Efficient Algorithm for Level Set Method Preserving Distance Function

Which similarity measure is better for analyzing protein structures in a molecular dynamics trajectory?

Speech Acquisition in Meetings with an Audio-Visual Sensor Array

Speech Acquisition in Meetings with an Audio-Visual Sensor Array

Autofocus for Digital Fresnel Holograms by Use of a Fresnelet-Sparsity Criterion

The Degenerate Bounded Errors-in-Variables Model

Analysis of Descent-Based Image Registration

Speech Acquisition in Meetings with an Audio-Visual Sensor Array

An Efficient Algorithm for Level Set Method Preserving Distance Function

Autofocus for Digital Fresnel Holograms by Use of a Fresnelet-Sparsity Criterion

Computational Methods For Structured Sparse Component Analysis of Convolutive Speech Mixtures

Euclidean Distance Matrices

Computational Methods For Structured Sparse Component Analysis of Convolutive Speech Mixtures

Speech Acquisition in Meetings with an Audio-Visual Sensor Array

The Degenerate Bounded Errors-in-Variables Model

Which similarity measure is better for analyzing protein structures in a molecular dynamics trajectory?