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  1. No Access

    Chapter and Conference Paper

    A Style-Based GAN Encoder for High Fidelity Reconstruction of Images and Videos

    We present a new encoder architecture for the inversion of Generative Adversarial Networks (GAN). The task is to reconstruct a real image from the latent space of a pre-trained GAN. Unlike previous encoder-bas...

    Xu Yao, Alasdair Newson, Yann Gousseau, Pierre Hellier in Computer Vision – ECCV 2022 (2022)

  2. No Access

    Article

    Video style transfer by consistent adaptive patch sampling

    This paper addresses the example-based stylization of videos. Style transfer aims at editing an image so that it matches the style of an example. This topic has been recently investigated by several researcher...

    Oriel Frigo, Neus Sabater, Julie Delon, Pierre Hellier in The Visual Computer (2019)

  3. No Access

    Chapter and Conference Paper

    Optimal Transportation for Example-Guided Color Transfer

    In this work, a novel and generic method for example-based color transfer is presented. The color transfer is formulated in two steps: first, an example-based Chromatic Adaptation Transform (CAT) has been desi...

    Oriel Frigo, Neus Sabater, Vincent Demoulin, Pierre Hellier in Computer Vision -- ACCV 2014 (2015)

  4. Chapter and Conference Paper

    Erratum: Saliency-Guided Consistent Color Harmonization

    In the original version, reference 16 was wrong. It should read as follows:

    Yoann Baveye, Fabrice Urban, Christel Chamaret in Computational Color Imaging (2013)

  5. Chapter and Conference Paper

    Saliency-Guided Consistent Color Harmonization

    The focus of this paper is automatic color harmonization, which amounts to re-coloring an image so that the obtained color palette is more harmonious for human observers. The proposed automatic algorithm build...

    Yoann Baveye, Fabrice Urban, Christel Chamaret in Computational Color Imaging (2013)

  6. No Access

    Article

    Real time ultrasound image denoising

    Image denoising is the process of removing the noise that perturbs image analysis methods. In some applications like segmentation or registration, denoising is intended to smooth homogeneous areas while preser...

    Fernanda Palhano Xavier de Fontes in Journal of Real-Time Image Processing (2011)

  7. Chapter and Conference Paper

    An Anthropomorphic Polyvinyl Alcohol Triple-Modality Brain Phantom Based on Colin27

    We propose a method for the creation of an anatomically and mechanically realistic brain phantom from polyvinyl alcohol cryogel (PVA-C) for validation of image processing methods for segmentation, reconstructi...

    Sean Jy-Shyang Chen, Pierre Hellier in Medical Image Computing and Computer-Assis… (2010)

  8. No Access

    Article

    A Low Dimensional Fluid Motion Estimator

    In this paper we propose a new motion estimator for image sequences depicting fluid flows. The proposed estimator is based on the Helmholtz decomposition of vector fields. This decomposition consists in repres...

    Anne Cuzol, Pierre Hellier, Etienne Mémin in International Journal of Computer Vision (2007)

  9. Chapter and Conference Paper

    3D Freehand Ultrasound Reconstruction Based on Probe Trajectory

    3D freehand ultrasound imaging is a very attractive technique in medical examinations and intra-operative stage for its cost and field of view capacities. This technique produces a set of non parallel B-scans ...

    Pierrick Coupé, Pierre Hellier in Medical Image Computing and Computer-Assis… (2005)

  10. No Access

    Chapter and Conference Paper

    A Novel Parametric Method for Non-rigid Image Registration

    This paper presents a novel non-rigid registration method. The main contribution of the method is the modeling of the vorticity (respectively divergence) of the deformation field using vortex (respectively sin...

    Anne Cuzol, Pierre Hellier, Etienne Mémin in Information Processing in Medical Imaging (2005)

  11. No Access

    Chapter

    Inter-Subject Non-Rigid Registration: An Overview with Classification and the Romeo Algorithm

    Pierre Hellier in Handbook of Biomedical Image Analysis (2005)

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    Book and Conference Proceedings

    Medical Image Computing and Computer-Assisted Intervention – MICCAI 2004

    7th International Conference, Saint-Malo, France, September 26-29, 2004. Proceedings, Part II

    Christian Barillot, David R. Haynor in Lecture Notes in Computer Science (2004)

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    Book and Conference Proceedings

    Medical Image Computing and Computer-Assisted Intervention – MICCAI 2004

    7th International Conference, Saint-Malo, France, September 26-29, 2004. Proceedings, Part I

    Christian Barillot, David R. Haynor in Lecture Notes in Computer Science (2004)

  14. Chapter and Conference Paper

    A Modified Total Variation Denoising Method in the Context of 3D Ultrasound Images

    Ultrasound volumes are corrupted by a multiplicative noise, the speckle, which makes high level analysis difficult. Within each resolution cell a number of elementary scatterers reflects the incident wave towa...

    Arnaud Ogier, Pierre Hellier in Medical Image Computing and Computer-Assis… (2004)

  15. Chapter and Conference Paper

    Robust and Automatic Calibration Method for 3D Freehand Ultrasound

    This paper describes a new robust and fully automatic method for calibration of three-dimensional (3D) freehand ultrasound. 3D Freehand ultrasound consists in mounting a position sensor on a standard probe. Th...

    François Rousseau, Pierre Hellier in Medical Image Computing and Computer-Assis… (2003)

  16. No Access

    Chapter and Conference Paper

    Acquisition of 3D ultrasound images during neuronavigation

    Intraoperative brain deformation is the most important cause affecting the overall accuracy of image guided neurosurgical procedures. One option for correcting this deformation is to acquire 3D ultrasound imag...

    Marloes M. J. Letteboer, Peter W. A. Willems in CARS 2002 Computer Assisted Radiology and … (2002)

  17. No Access

    Chapter and Conference Paper

    Robust Multi-scale Non-rigid Registration of 3D Ultrasound Images

    In this paper, we embed the minimization scheme of an automatic 3D non-rigid registration method in a multi-scale framework. The initial model formulation was expressed as a robust multiresolution and multigri...

    Ioannis Pratikakis, Christian Barillot in Scale-Space and Morphology in Computer Vis… (2001)

  18. No Access

    Chapter and Conference Paper

    Cooperation between Local and Global Approaches to Register Brain Images

    In this paper, we investigate the introduction of cortical constraints for non rigid inter-subject brain registration. We extract sulcal patterns with the active ribbon method, presented in [10]. An energy based ...

    Pierre Hellier, Christian Barillot in Information Processing in Medical Imaging (2001)

  19. Chapter and Conference Paper

    Non-linear Local Registration of Functional Data

    Within the scope of three-dimensional brain imaging we propose an inter-individual fusion scheme to register functional activations relatively to anatomical cortical structures, the sulci. This approach is loc...

    Isabelle Corouge, Christian Barillot in Medical Image Computing and Computer-Assis… (2001)

  20. Chapter and Conference Paper

    Multimodal Non-rigid War** for Correction of Distortions in Functional MRI

    This paper deals with the correction of distortions in EPI acquisitions. Echo-planar imaging (EPI) data is used in functional resonance imaging (fMRI) and in diffusion tensor MRI (dMRI) because of its impressi...

    Pierre Hellier, Christian Barillot in Medical Image Computing and Computer-Assis… (2000)

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