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Jean-Philippe Thiran

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Publications associées (496)

Correction to "Comparison and Validation of Tissue Modelization and Statistical Classification Methods in T1-Weighted MR Brain Images"

Torsten Butz, Jean-Philippe Thiran, Meritxell Bach Cuadra, Olivier Cuisenaire, Leila Cammoun

Institute of Electrical and Electronics Engineers2006

Dense Deformation Field Estimation for Atlas-based Segmentation of Pathological MR Brain Images

Valérie Duay, Jean-Philippe Thiran, Meritxell Bach Cuadra, Benoît Macq, Mathieu De Craene

Atlas registration is a recognized paradigm for the automatic segmentation of normal MR brain images. Unfortunately, atlas-based segmentation has been of limited use in presence of large space-occupying lesions. In fact, brain deformations induced by such ...

2006

Matching pursuit-based shape representation and recognition using scale-space

François Mendels, Jean-Philippe Thiran, Pierre Vandergheynst

In this paper, we propose an analytical low-level representation of images, obtained by a decomposition process, namely the matching pursuit (MP) algorithm, as a new way of describing objects through a general continuous description using an affine invaria ...

2006

Validation of Experts Versus Atlas-Based and Automatic Registration Methods for Subthalamic Nucleus Targeting on MRI

Jean-Philippe Thiran, Olivier Cuisenaire, Francisco Javier Sanchez Castro

Objects. In functional stereotactic neurosurgery, one of the cornerstones upon which the success and the operating time depends is an accurate targeting. The subthalamic nucleus (STN) is the usual target involved when applying Deep Brain Stimulation (DBS) ...

2006

Monte Carlo Video Text Segmentation

Jean-Philippe Thiran, Datong Chen, Jean-Marc Odobez

This paper presents a probabilistic algorithm for segmenting and recognizing text embedded in video sequences based on adaptive thresholding using a Bayes filtering method. The algorithm approximates the posterior distribution of segmentation thresholds of ...

2005

Collaborative TeleNeurology for Remote Diagnosis

Jean-Philippe Thiran, Leila Cammoun

This paper presents the TENECI (Collaborative tele- neurology) project which allows practitioners to use telecommunication technologies to provide medical information and services for neurological diseases. Specificities of remote neurology are described a ...

2005

Kernel Matching Pursuit for Large Datasets

Jean-Philippe Thiran, Vlad Popovici

Kernel matching pursuit is a greedy algorithm for building an approximation of a discriminant function as a linear combination of some basis functions selected from a kernel-induced dictionary. Here we propose a modification of the kernel matching pursuit ...

2005

Comparison and Validation of Tissue Modelization and Statistical Classification Methods in T1-weighted MR Brain Images

Torsten Butz, Jean-Philippe Thiran, Meritxell Bach Cuadra, Olivier Cuisenaire, Leila Cammoun

This paper presents a validation study on statistical non-supervised brain tissue classification techniques in MR images. Several image models assuming different hypotheses regarding the intensity distribution model, the spatial model and the number of cla ...

Institute of Electrical and Electronics Engineers2005

Audio-Visual Speech Recognition with a Hybrid SVM-HMM System

Jean-Philippe Thiran, Mihai Gurban

Traditional speech recognition systems use Gaussian mixture models to obtain the likelihoods of individual phonemes, which are then used as state emission probabilities in hidden Markov models representing the words. In hybrid systems, the Gaussian mixture ...

EUSIPCO2005

Obstructive sleep apnea syndrome: effect of respiratory events and arousal on pulse wave amplitude measured by photoplethysmography in NREM sleep

Jean-Marc Vesin, Jean-Philippe Thiran

2005

Real-Time Treatment Planning Optimisation for Brachytherapy

Rakesh Chawla, Jean-Philippe Thiran

In this paper, we present an integrated system for real-time dose distribution calculation and treatment planning optimisation for brachytherapy of prostate cancer, with a special emphasis on the visual integration of the dosimetry and target images obtain ...

2005

Ultrasound Measurement of the Fibrous Cap in Symptomatic and Asymptomatic Atheromatous Carotid Plaques

Jean-Philippe Thiran, Olivier Cuisenaire, Lisa Jonasson

2005

Segmentation of Brain Structures in Presence of a Space-Occupying Lesion

Jean-Philippe Thiran, Meritxell Bach Cuadra, Olivier Cuisenaire

Brain deformations induced by space-occupying lesions may result in unpredictable position and shape of functionally important brain structures. The aim of this study is to propose a method for segmentation of brain structures by deformation of a segmented ...

2005

From Error Probability to Information Theoretic (Multi-Modal) Signal Processing

Torsten Butz, Jean-Philippe Thiran

We propose an information theoretic model that unifies a wide range of existing information theoretic signal processing algorithms in a compact mathematical framework. It is mainly based on stochastic processes, Markov chains and error probabilities. The p ...

2005

White matter fiber tract segmentation in DT-MRI using geometric flows

Jean-Philippe Thiran, Olivier Cuisenaire, Xavier Bresson, Patric Hagmann, Reto Meuli, Lisa Jonasson

In this paper, we present a 3D geometric flow designed to segment the main core of fiber tracts in diffusion tensor magnetic resonance images. The fundamental assumption of our fiber segmentation technique is that adjacent voxels in a tract have similar pr ...

2005

Minimiseurs Globaux du Modele des Contours Actifs

Jean-Philippe Thiran, Pierre Vandergheynst, Xavier Bresson, Leila Cammoun

Le modele des contours actifs [6,2,7] est un des modeles variationnels de segmentation les plus connus en traitement d'images. Cependant, ce modele est limite par l'existence de minima locaux qui rend la condition initiale critique pour obtenir des resulta ...

2005

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