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  4. A Latent Implicit 3D Shape Model for Multiple Levels of Detail
 
conference paper

A Latent Implicit 3D Shape Model for Multiple Levels of Detail

Guillard, Benoît  
•
Habermann, Marc
•
Theobalt, Christian
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Cremers, Daniel
•
Lähner, Zorah
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2025
Pattern Recognition - 46th DAGM German Conference, DAGM GCPR 2024, Munich, Germany, September 10-13, 2024. Proceedings, Part II
46th Annual Conference of the German Association for Pattern Recognition (DAGM GCPR 2024)

Implicit neural representations map a shape-specific latent code and a 3D coordinate to its corresponding signed distance (SDF) value. However, this approach only offers a single level of detail. Emulating low levels of detail can be achieved with shallow networks, but the generated shapes are typically not smooth. Alternatively, some network designs offer multiple levels of detail, but are limited to overfitting a single object. To address this, we propose a new shape modeling approach, which enables multiple levels of detail and guarantees a smooth surface at each level. At the core, we introduce a novel latent conditioning for a multiscale and bandwith-limited neural architecture. This results in a deep parameterization of multiple shapes, where early layers quickly output approximated SDF values. This allows to balance speed and accuracy within a single network and enhance the efficiency of implicit scene rendering. We demonstrate that by limiting the bandwidth of the network, we can maintain smooth surfaces across all levels of detail. At finer levels, reconstruction quality is on par with the state of the art models, which are limited to a single level of detail.

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Type
conference paper
DOI
10.1007/978-3-031-85187-2_3
Scopus ID

2-s2.0-105004252548

Author(s)
Guillard, Benoît  

EPFL

Habermann, Marc

Max Planck Institute for Informatics

Theobalt, Christian

Max Planck Institute for Informatics

Fua, Pascal  

EPFL

Editors
Cremers, Daniel
•
Lähner, Zorah
•
Moeller, Michael
•
Nießner, Matthias
•
Ommer, Björn
•
Triebel, Rudolph
Date Issued

2025

Publisher

Springer Nature (Switzerland)

Publisher place

Cham, Switzerland

Published in
Pattern Recognition - 46th DAGM German Conference, DAGM GCPR 2024, Munich, Germany, September 10-13, 2024. Proceedings, Part II
DOI of the book
https://doi.org/10.1007/978-3-031-85187-2
ISBN of the book

978-3-031-85186-5

978-3-031-85187-2

Series title/Series vol.

Lecture Notes in Computer Science (LNCS); 15298

ISSN (of the series)

1611-3349

0302-9743

Start page

37

End page

52

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
CVLAB  
Event nameEvent acronymEvent placeEvent date
46th Annual Conference of the German Association for Pattern Recognition (DAGM GCPR 2024)

DAGM-GCPR 2024

Munich, Germany

2024-09-10 - 2024-09-13

FunderFunding(s)Grant NumberGrant URL

Swiss National Science Foundation

ERC

770784

Available on Infoscience
May 13, 2025
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/250101
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