S. Sunaert, O. Faugeras, P. Van Hecke, Unit Inria, Sophia Antipolis, P. Kornprobst, ...
apport de recherche
M. Clerc, R. Keriven, O. Faugeras, J. Kybic, T. Papadopoulo
The direct electro/magnetoencephalographic (E/MEG) problem consists of simulating the electromagnetic field produced by neuronal sources on the cortex. We compare two different methods for the...
Generalized gradients: priors on minimization flows (2007)
G. Charpiat, P. Maurel, J. -p. Pons, R. Keriven, O. Faugeras
This paper tackles an important aspect of the variational problem underlying active contours: optimization by gradient flows. Classically, the definition of a gradient depends directly on the choice...
Shape from shading: a well-posed problem (2004)
Shape From Shading is known to be an ill-posed problem. We show in this paper that if we model the problem in a different way than it is usually done, more precisely by taking into account the 1/r2...
Variational stereovision and 3d scene flow estimation with statistical similarity measures (2003)
J. -p. Pons, R. Keriven, O. Faugeras, G. Hermosillo
We present a common variational framework for dense depth recovery and dense three-dimensional motion field estimation from multiple video sequences, which is robust to camera spectral sensitivity...
"Perspective Shape from Shading" and Viscosity Solutions (2003)
E. Prados, O. Faugeras, Inria Ens
This article proposes a solution of the Lambertian shape from shading (SFS) problem in the case of a pinhole camera model (performing a perspective projection). Our approach is based upon the notion...
Shape from shading and viscosity solutions (2002)
This article proposes a solution of the Lambertian shape from shading (SFS) problem in the case of a pinhole camera model (performing a perspective projection). Our approach is based upon the notion...
Flows Of Diffeomorphisms For Multimodal Image Registration (2002)
Chefd'hotel Hermosillo Faugeras, G. Hermosillo, O. Faugeras
We present a theoretical and computational framework for nonrigid multimodal registration. We proceed by maximization of statistical similarity criteria (global and local) in a variational framework,...
Superresolution in MRI and its influence in statistical analysis (2002)
S. Sunaert, O. Faugeras, P. Van Hecke, Unit Inria, Sophia Antipolis, P. Kornprobst, ...
We consider the problem of increasing the spatial resolution of fMRI images. Main contributions are: (1) the denition of the protocol to acquire shifted images in order to be able to obtain images...
Flows of Diffeomorphisms for Multimodal Image Registration (2002)
C. Chefd'hotel, G. Hermosillo, O. Faugeras
We present a theoretical and computational framework for nonrigid multimodal registration. We proceed by minimization of statistical similarity criteria (global and local) in a variational framework,...
Superresolution in MRI and its influence in statistical analysis (2002)
Kornprobst, P., Malandain, G., Faugeras, O., Peeters, R., Viéville, Thierry, Mierisova, S., ...
We consider the problem of increasing the spatial resolution of fMRI images. Main contributions are: (1) the definition of the protocol to acquire shifted images in order to be able to obtain images...
Superresolution in MRI and its influence in statistical analysis (2002)
Kornprobst, P., Malandain, G., Faugeras, O., Peeters, R., Viéville, Thierry, Mierisova, S., ...
We consider the problem of increasing the spatial resolution of fMRI images. Main contributions are: (1) the definition of the protocol to acquire shifted images in order to be able to obtain images...
The inverse EEG and MEG problems: The adjoint state approach I: The continuous case (1999)
O. Faugeras, F. Clément, R. Deriche, R. Keriven, T. Papadopoulo, J. Roberts, ...
In this report, we study the problem of the three-dimensional reconstruction of the electrical activity of the brain from electroencephalography (EEG) and magnetoencephalography (MEG). We use a...
Using geometric corners to build a 2D mosaic from a set of images (1997)
I. Zoghlami, O. Faugeras, R. Deriche, F- Sophia-antipolis Cedex
line matching. The main problem for building a mosaic is the computation of the warping functions (homographies). In fact two cases are to be distinguished. The rst is when the homography is mainly a...
A Nonlinear Method for Estimating the Projective Geometry of Three Views (1997)
O. Faugeras, T. Papadopoulo, O. Faugeras T. Papadopoulo, Projet Robotvis
Given three partially overlapping views of a scene from which a set of point correspondences have been extracted, recover the three trifocal tensors between the three views. We give a new way of...
O. Faugeras, T. Papadopoulo, O. Faugeras T. Papadopoulo, Projet Robotvis
: We show how to use the Grassmann-Cayley algebra to model systems of one, two and three cameras. We start with a brief introduction of the Grassmann-Cayley or double algebra and proceed to...
About the correspondences of points between N images (1995)
We analyze the correspondence of points between an arbitrary number of images, from an algebraic and geometric point of view. We use the formalism of the Grassmann-Cayley algebra as the simplest way...
About the correspondences of points between N images (1995)
We analyze the correspondence of points between an arbitrary number of images, from an algebraic and geometric point of view. We use the formalism of the Grassmann-Cayley algebra as the simplest way...
A Comparison of Projective Reconstruction Methods for Pairs of Views (1995)
C. Rothwell, G. Csurka, O. Faugeras, Sophia Antipolis
Recently, different approaches for uncalibrated stereo have been suggested which permit projective reconstruction from multiple views. These use weak calibration which is represented by the epipolar...
Robust recovery of the epipolar geometry for an uncalibrated stereo rig (1994)
R. Deriche, Z. Zhang, Q. -t. Luong, O. Faugeras
Abstract. This paper addresses the problem of accurately and automatically recovering the epipolar geometry from an uncalibrated stereo rig and its application to the image matching problem. A robust...