---
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coverAuthor: Laurent Fainsin, Damien Guillotin, Pierre-Eliot Jourdan
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coverDate: '2023-01-05'
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title: Bureau d'étude de PI3D
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# Bureau d'étude de PI3D
Sujet 6 - Reformulation du MVS par level sets
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## Level sets ?
$\mathcal{V}_t = \{ \textbf{Q} \in \mathbb{R}^3, u(\textbf{Q}) = t \}, \quad t\in [0,1], \quad u \colon \mathbb{R}^3 \to [0, 1]$
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## Exemple Level sets 2D
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## Exemple Level sets 3D
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## Approximation du volume
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## Discrétisation de l'espace
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## Mise à jour du volume
consensus blabla
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## Initialisation du volume
ones ou alors shape from silouhette
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## Exemple Shape from Silouhette
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## Raytracing
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## Raytracing
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## Raytracing
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## Raytracing
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## Résultats