Florent Vial

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We present a real-time model-based line tracking approach with adaptive learning of image edge features that can handle partial occlusion and illumination changes. A CAD (VRML) model of the object to track is needed. First, the visible edges of the model with respect to the camera pose estimate are sorted out by a visibility test performed on standard(More)
Water-soluble polymers containing a few hydrophobic anchors are known to bind onto lipid vesicles and are used as stabilizers of liposome-based formulas. In contrast, polymers with high hydrophobicity destabilize the lipid bilayers. With macromolecules of intermediate hydrophobic/hydrophilic balance, a gradual sweep of the stabilization-destabilization(More)
The temperature and wind of the ECMWF ERA40 reanalysis in the tropical lower stratosphere during the period 1988–2001 has been evaluated by comparison with independent in situ measurements of 21 IR Montgolfier and superpressure long-duration balloon flights performed by CNES from Pretoria (26 S) in South Africa in 1988–1989, Latacunga (1 S) in Ecuador in(More)
We examined by fluorescence microscopy the permeabilization of giant vesicles by hydrophobically modified polyacrylates (called amphipols). Amphipols trigger permeabilization to FITC-dextran of egg-PC/DPPA vesicles with no breakage of the lipid bilayers. The polyanionic amphipols were passing through bilayers as shown by permeabilization of multilamellar(More)
Semiconductor colloidal quantum dots (QDs) are promising fluorescent probes for biology. Initially synthesized in organic solvents, they can be dispersed in aqueous solution by noncovalent coating with amphiphilic macromolecules, which renders the particles hydrophilic and modifies their interactions with other biological compounds. Here, after coating QDs(More)
J.-P. Pommereau, A. Garnier, G. Held, A.-M. Gomes, F. Goutail, G. Durry, F. Borchi, A. Hauchecorne, N. Montoux, P. Cocquerez, G. Letrenne, F. Vial, A. Hertzog, B. Legras, I. Pisso, J. A. Pyle, N. R. P. Harris, R. L. Jones, A. Robinson, G. Hansford, L. Eden, T. Gardiner, N. Swann, B. Knudsen, N. Larsen, J. Nielsen, T. Christensen, F. Cairo, M. Pirre, V.(More)
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