Concept

Analyse en composantes indépendantes

Publications associées (302)

Unified Inference for Variational Bayesian Linear Gaussian State-Space Models

Linear Gaussian State-Space Models are widely used and a Bayesian treatment of parameters is therefore of considerable interest. The approximate Variational Bayesian method applied to these models is an attractive approach, used successfully in application ...

IDIAP2006

Modeling heterogeneous real-time components in BIP

Joseph Sifakis

We present a methodology for modeling heterogeneous real-time components. Components are obtained as the superposition of three layers: behavior, specified as a set of transitions; Interactions between transitions of the behavior; Priorities, used to choos ...

2006

Mutual information eigenlips for audio-visual speech recognition

Jean-Philippe Thiran, Ivana Arsic de Heras Ciechomska

This paper proposes an application of information theoretic approach for finding the most informative subset of eigenfeatures to be used for audio-visual speech recognition tasks. The state-of-the-art visual feature extraction methods in the area of speech ...

IEEE2006

Blind Audio-Visual Source Separation Using Sparse Redundant Representations

Pierre Vandergheynst, Gianluca Monaci, Anna Llagostera Casanovas

This report presents a new method to confront the Blind Audio Source Separation (BASS) problem, by means of audio and visual information. In a given mixture, we are able to locate the video sources first and, posteriorly, recover each source signal, only w ...

2006

A Component Approach to Optical Transmission Network Design

The article describes the philosophy of component approach to system design, illustrated on the optical transmission network example. The approach is based on the object oriented paradigms of Cosmos and Nyx tools. Cosmos serves as the support for system an ...

Springer2006

Multiple Description Image Coding with Block-Coherent Redundant Dictionaries

Pascal Frossard, Ivana Radulovic

This paper presents a method for multiple description coding, by clustering generic redundant dictionaries into blocks of N atoms. Since these blocks are likely to gather coherent atoms, the encoder can distribute atoms from the same coherent block to diff ...

2006

Portable optical microscope-on-a-chip

Demetri Psaltis

In this paper, we present a novel high resolution optical imaging device on chip. It is based on a line of nano holes defined in an optically opaque aluminum film on a CMOS imaging sensor chip. Because it's free of bulky optical elements and compatible to ...

2006

High Dynamic Range Image Rendering Using a Retinex-Based Adaptive Filter

Sabine Süsstrunk, Laurence Meylan

We propose a new method to render high dynamic range images that models global and local adaptation of the human visual system. Our method is based on the center-surround Retinex model. The novelties of our method is first to use an adaptive surround, whos ...

Institute of Electrical and Electronics Engineers2006

Package Universes: Which Components Are Real Candidates?

Package universes is a component-distribution architecture based on explicitly managing the set of components visible at assembly time. The architecture is usable as is for a number of common organizations and software-engineering processes. Also, by provi ...

2006

Exploring Contextual Information in a Layered Framework for Group Action Recognition

Daniel Gatica-Perez, Samy Bengio, Dong Zhang

Contextual information is important for sequence modeling. Hidden Markov Models (HMMs) and extensions, which have been widely used for sequence modeling, make simplifying, often unrealistic assumptions on the conditional independence of observations given ...

2006

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