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Séminaire A3SI - Hugues Talbot
Séminaire A3SI - Hugues Talbot
12-Mar-2020 13:30
Age: 314 days

Un séminaire de l'équipe A3SI du LIGM aura lieu jeudi 12 mars à 13h30  à ESIEE Paris (amphi 260). Hugues Talbot nous présentera ses travaux sur "Vascular networks, from low-level vision to generative models"

Vascular networks, from low-level vision to generative models

Abstract: The study of vascular networks is important in medical imaging because disease affecting blood vessels is the first cause of mortality and morbidity in the Western world. Yet, surprisingly, theses studies have not been the subject of major research efforts. From the low-level vision point of view, the vast majority of image processing techniques assume objects that are locally isotropic, whereas blood vessels are always thin and oriented at every scale. They are also inherently 3D and cannot usually be studied correctly in projections. With respect to scale, most blood vessels are too thin to be imaged irrespective of the imaging modality. Yet various blood vessel diseases, affecting blood perfusion for example, occur in vessels that cannot be imaged in MRI or scanner.

In this talk, I will outline research performed in the last few years in this area. I will present some efficient low-level vision filters designed for thin and elongated objects. I will also show some recent work using a generative model, not based on deep learning, to produce realistic patient-specific vessel models, that can be used to produce a forward imaging model for perfusion. This model can be used to solve related inverse problems, such as finding the cause of a perfusion deficit from observed perfusion.

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