References of "Verly, Jacques"
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See detailRobust Automatic Target Recognition Using Extra-trees
Pisane, Jonathan ULg; Marée, Raphaël ULg; Wehenkel, Louis ULg et al

in Pisane, Jonathan (Ed.) Robust Automatic Target Recognition Using Extra-trees (2010)

In this paper, we describe a new automatic target recognition algorithm for classifying SAR images based on the PiXiT image classifier. It uses randomized sub-windows extraction and extremely randomized ... [more ▼]

In this paper, we describe a new automatic target recognition algorithm for classifying SAR images based on the PiXiT image classifier. It uses randomized sub-windows extraction and extremely randomized trees (extra-trees). This approach requires very little pre-processing of the images, thereby limiting the computational load. It was successfully tested on an extended version of the public standard MSTAR database, that includes targets of interest, false targets, and background clutter. A misclassification rate of about three percent has been achieved. [less ▲]

Detailed reference viewed: 106 (3 ULg)
See detailAdding sound to movies: Historical trends and new challenges of 3D cinema
André, Cédric ULg; Embrechts, Jean-Jacques ULg; Verly, Jacques ULg

Conference (2009, December 03)

Very little research has been done so far in producing 3D sound and audio that are consistent with the 3D stereo video being viewed by the spectator. After a review of the currently used techniques for ... [more ▼]

Very little research has been done so far in producing 3D sound and audio that are consistent with the 3D stereo video being viewed by the spectator. After a review of the currently used techniques for theater sound reproduction, this talk presents new challenges of 3D cinema in terms of sound reproduction and analyse which known 3D audio techniques are able to tackle those challenges. [less ▲]

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See detail2D XFEM-based modeling of retraction and successive resections for preoperative image update.
Vigneron, Lara M.; Duflot, Marc P.; Robe, Pierre ULg et al

in Computer aided surgery : official journal of the International Society for Computer Aided Surgery (2009), 14(1-3), 1-20

This paper considers an approach to improving outcomes for neurosurgery patients by enhancing intraoperative navigation and guidance. Currently, intraoperative navigation systems do not accurately account ... [more ▼]

This paper considers an approach to improving outcomes for neurosurgery patients by enhancing intraoperative navigation and guidance. Currently, intraoperative navigation systems do not accurately account for brain shift or tissue resection. We describe how preoperative images can be incrementally updated to take into account any type of brain tissue deformation that may occur during surgery, and thus to improve the accuracy of image-guided navigation systems. For this purpose, we have developed a non-rigid image registration technique using a biomechanical model, which deforms based on the Finite Element Method (FEM). While the FEM has been used successfully for dealing with deformations such as brain shift, it has difficulty with tissue discontinuities. Here, we describe a novel application of the eXtended Finite Element Method (XFEM) in the field of image-guided surgery in order to model brain deformations that imply tissue discontinuities. In particular, this paper presents a detailed account of the use of XFEM for dealing with retraction and successive resections, and demonstrates the feasibility of the approach by considering 2D examples based on intraoperative MR images. To evaluate our results, we compute the modified Hausdorff distance between Canny edges extracted from images before and after registration. We show that this distance decreases after registration, and thus demonstrate that our approach improves alignment of intraoperative images. [less ▲]

Detailed reference viewed: 14 (0 ULg)
See detailMedical Imaging in Engineering School
Verly, Jacques ULg

Scientific conference (2009)

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Peer Reviewed
See detailApplications of 3D visualization in science and engineering
Burrus, Nicolas; Hoyoux, Thomas; Verly, Jacques ULg

Conference (2009)

Detailed reference viewed: 9 (1 ULg)
Peer Reviewed
See detailHandling range ambiguities in registration-based range-dependence compensation for conformal array STAP
Ries, Philippe; Verly, Jacques ULg; Lapierre, Fabian D.

Conference (2009)

Detailed reference viewed: 5 (0 ULg)
Peer Reviewed
See detailAn Extra-trees-based Automatic Target Recognition Algorithm
Pisane, Jonathan ULg; Marée, Raphaël ULg; Ries, Philippe ULg et al

in To appear in Proc. International Radar Conference (2009)

Detailed reference viewed: 106 (31 ULg)
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See detailGround-Target Tracking in Multiple Cameras Using Collaborative Particle Filters and Principal Axis-Based Integration
Du, Wei ULg; Hayet, Jean-Bernard; Verly, Jacques ULg et al

in IPSJ Transactions on Computer Vision and Applications (2009), 1

Detailed reference viewed: 58 (2 ULg)
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See detailIssues in FEM-based Modeling of Brain Shift in Neurosurgery
Vigneron, Lara M.; Boman, Romain ULg; Ponthot, Jean-Philippe ULg et al

in Hogge, Michel; Van Keer, R.; Noels, Ludovic (Eds.) et al Proceedings of ACOMEN’2008, Advanced Computational Methods in Engineering (2008, May)

We consider the problem of improving outcomes for neurosurgery patients by enhancing intraoperative navigation and guidance. Current navigation systems do not accurately account for intraoperative brain ... [more ▼]

We consider the problem of improving outcomes for neurosurgery patients by enhancing intraoperative navigation and guidance. Current navigation systems do not accurately account for intraoperative brain deformation. In this work, we focus on the brain shift deformation that occurs just after the opening of the skull and dura, before any cut and subsequent deformation has happened. We test several algorithms and parameters in order to evaluate their impact on the modeling of the brain shift. [less ▲]

Detailed reference viewed: 49 (13 ULg)
See detailOUFTI-1: New Student Nano-Satellite at ULg
Galli, Stefania; Ledent, Philippe; Pisane, Jonathan ULg et al

Scientific conference (2008)

Detailed reference viewed: 11 (2 ULg)
See detailDigital Imaging
Verly, Jacques ULg

Scientific conference (2008)

Detailed reference viewed: 3 (0 ULg)
Peer Reviewed
See detailRange-dependence compensation in airborne bistatic STAP radar for partially-calibrated conformal antenna arrays
Ries, Philippe; Lapierre, Fabian D.; Lesturgie, Marc et al

Conference (2008)

Detailed reference viewed: 8 (0 ULg)
Peer Reviewed
See detailOUFTI-1: The CubeSat developed at the University of Liège, Belgium
Galli, Stefania; Pisane, Jonathan ULg; Ledent, Philippe et al

Conference (2008)

Detailed reference viewed: 15 (2 ULg)
Peer Reviewed
See detailHigh-resolution clutter-power estimation for range-dependence compensation in conformal-array STAP
Ries, Philippe; Lapierre, Fabian D.; Lesturgie, Marc et al

Conference (2008)

Detailed reference viewed: 12 (0 ULg)
Peer Reviewed
See detailWelcome & Introduction to Liège Image Days 2008: Medical Imaging
Verly, Jacques ULg

Conference (2008)

Detailed reference viewed: 11 (0 ULg)
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See detailOUFTI-1: The CubeSat developed at the University of Liège, Belgium
Galli, S.; Pisane, Jonathan ULg; Ledent, P. et al

Conference (2008)

Detailed reference viewed: 145 (23 ULg)
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See detail3D FEM/XFEM-based Biomechanical Brain Modeling for Preoperative Image Update
Vigneron, Lara; Boman, Romain ULg; Robe, Pierre ULg et al

in Miller, Karol; Paulsen, Keith D.; Young, Alistair A. (Eds.) et al MICCAI 2007 Workshop Proceedings : Computational Biomechanics for Medicine II (2007, November)

We present an end-to-end system for updating 3D preoperative images in the presence of brain shift and successive resections. The tissue discontinuities due to resections are handled via the eXtented ... [more ▼]

We present an end-to-end system for updating 3D preoperative images in the presence of brain shift and successive resections. The tissue discontinuities due to resections are handled via the eXtented Finite Element Method (XFEM), which has the appealing feature of handle arbitrarily-shaped discontinuity without any remeshing. The main novelty of the paper lies in the use of XFEM in 3D. [less ▲]

Detailed reference viewed: 53 (11 ULg)