PartSDF: Part-Based Implicit Neural Representation for Composite 3D Shape Parametrization and Optimization Article Swipe

PDF

Nicolas Talabot , Olivier Clerc , Arda Cinar Demirtas , Doruk Oner , Pascal Fua ·

YOU? · · 2025 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2502.12985

Accurate 3D shape representation is essential in engineering applications such as design, optimization, and simulation. In practice, engineering workflows require structured, part-based representations, as objects are inherently designed as assemblies of distinct components. However, most existing methods either model shapes holistically or decompose them without predefined part structures, limiting their applicability in real-world design tasks. We propose PartSDF, a supervised implicit representation framework that explicitly models composite shapes with independent, controllable parts while maintaining shape consistency. Thanks to its simple but innovative architecture, PartSDF outperforms both supervised and unsupervised baselines in reconstruction and generation tasks. We further demonstrate its effectiveness as a structured shape prior for engineering applications, enabling precise control over individual components while preserving overall coherence. Code available at https://github.com/cvlab-epfl/PartSDF.

Related Topics

Concepts

Parametrization (atmospheric modeling) Composite number Representation (politics) Mathematics Computer science Algorithm Physics Political science Law Politics Radiative transfer Quantum mechanics

Metadata

Type: preprint
Language: en
Landing Page: http://arxiv.org/abs/2502.12985
PDF: https://arxiv.org/pdf/2502.12985
OA Status: green
Related Works: 10
OpenAlex ID: https://openalex.org/W4407760015

All OpenAlex metadata

Raw OpenAlex JSON

OpenAlex ID: https://openalex.org/W4407760015

Canonical identifier for this work in OpenAlex
DOI: https://doi.org/10.48550/arxiv.2502.12985

Digital Object Identifier
Title: PartSDF: Part-Based Implicit Neural Representation for Composite 3D Shape Parametrization and Optimization

Work title
Type: preprint

OpenAlex work type
Language: en

Primary language
Publication year: 2025

Year of publication
Publication date: 2025-02-18

Full publication date if available
Authors: Nicolas Talabot, Olivier Clerc, Arda Cinar Demirtas, Doruk Oner, Pascal Fua

List of authors in order
Landing page: https://arxiv.org/abs/2502.12985

Publisher landing page
PDF URL: https://arxiv.org/pdf/2502.12985

Direct link to full text PDF
Open access: Yes

Whether a free full text is available
OA status: green

Open access status per OpenAlex
OA URL: https://arxiv.org/pdf/2502.12985

Direct OA link when available
Concepts: Parametrization (atmospheric modeling), Composite number, Representation (politics), Mathematics, Computer science, Algorithm, Physics, Political science, Law, Politics, Radiative transfer, Quantum mechanics

Top concepts (fields/topics) attached by OpenAlex
Cited by: 0

Total citation count in OpenAlex
Related works (count): 10

Other works algorithmically related by OpenAlex

Full payload

id	https://openalex.org/W4407760015
doi	https://doi.org/10.48550/arxiv.2502.12985
ids.doi	https://doi.org/10.48550/arxiv.2502.12985
ids.openalex	https://openalex.org/W4407760015
fwci
type	preprint
title	PartSDF: Part-Based Implicit Neural Representation for Composite 3D Shape Parametrization and Optimization
biblio.issue
biblio.volume
biblio.last_page
biblio.first_page
topics[0].id	https://openalex.org/T10719
topics[0].field.id	https://openalex.org/fields/22
topics[0].field.display_name	Engineering
topics[0].score	0.9937999844551086
topics[0].domain.id	https://openalex.org/domains/3
topics[0].domain.display_name	Physical Sciences
topics[0].subfield.id	https://openalex.org/subfields/2206
topics[0].subfield.display_name	Computational Mechanics
topics[0].display_name	3D Shape Modeling and Analysis
topics[1].id	https://openalex.org/T11211
topics[1].field.id	https://openalex.org/fields/19
topics[1].field.display_name	Earth and Planetary Sciences
topics[1].score	0.9785000085830688
topics[1].domain.id	https://openalex.org/domains/3
topics[1].domain.display_name	Physical Sciences
topics[1].subfield.id	https://openalex.org/subfields/1907
topics[1].subfield.display_name	Geology
topics[1].display_name	3D Surveying and Cultural Heritage
topics[2].id	https://openalex.org/T11159
topics[2].field.id	https://openalex.org/fields/22
topics[2].field.display_name	Engineering
topics[2].score	0.9757999777793884
topics[2].domain.id	https://openalex.org/domains/3
topics[2].domain.display_name	Physical Sciences
topics[2].subfield.id	https://openalex.org/subfields/2209
topics[2].subfield.display_name	Industrial and Manufacturing Engineering
topics[2].display_name	Manufacturing Process and Optimization
is_xpac	False
apc_list
apc_paid
concepts[0].id	https://openalex.org/C202887219
concepts[0].level	3
concepts[0].score	0.8665211200714111
concepts[0].wikidata	https://www.wikidata.org/wiki/Q3895221
concepts[0].display_name	Parametrization (atmospheric modeling)
concepts[1].id	https://openalex.org/C104779481
concepts[1].level	2
concepts[1].score	0.6934508085250854
concepts[1].wikidata	https://www.wikidata.org/wiki/Q50707
concepts[1].display_name	Composite number
concepts[2].id	https://openalex.org/C2776359362
concepts[2].level	3
concepts[2].score	0.6698523759841919
concepts[2].wikidata	https://www.wikidata.org/wiki/Q2145286
concepts[2].display_name	Representation (politics)
concepts[3].id	https://openalex.org/C33923547
concepts[3].level	0
concepts[3].score	0.4446573257446289
concepts[3].wikidata	https://www.wikidata.org/wiki/Q395
concepts[3].display_name	Mathematics
concepts[4].id	https://openalex.org/C41008148
concepts[4].level	0
concepts[4].score	0.39203721284866333
concepts[4].wikidata	https://www.wikidata.org/wiki/Q21198
concepts[4].display_name	Computer science
concepts[5].id	https://openalex.org/C11413529
concepts[5].level	1
concepts[5].score	0.21265774965286255
concepts[5].wikidata	https://www.wikidata.org/wiki/Q8366
concepts[5].display_name	Algorithm
concepts[6].id	https://openalex.org/C121332964
concepts[6].level	0
concepts[6].score	0.15874773263931274
concepts[6].wikidata	https://www.wikidata.org/wiki/Q413
concepts[6].display_name	Physics
concepts[7].id	https://openalex.org/C17744445
concepts[7].level	0
concepts[7].score	0.06877553462982178
concepts[7].wikidata	https://www.wikidata.org/wiki/Q36442
concepts[7].display_name	Political science
concepts[8].id	https://openalex.org/C199539241
concepts[8].level	1
concepts[8].score	0.0
concepts[8].wikidata	https://www.wikidata.org/wiki/Q7748
concepts[8].display_name	Law
concepts[9].id	https://openalex.org/C94625758
concepts[9].level	2
concepts[9].score	0.0
concepts[9].wikidata	https://www.wikidata.org/wiki/Q7163
concepts[9].display_name	Politics
concepts[10].id	https://openalex.org/C74902906
concepts[10].level	2
concepts[10].score	0.0
concepts[10].wikidata	https://www.wikidata.org/wiki/Q1190858
concepts[10].display_name	Radiative transfer
concepts[11].id	https://openalex.org/C62520636
concepts[11].level	1
concepts[11].score	0.0
concepts[11].wikidata	https://www.wikidata.org/wiki/Q944
concepts[11].display_name	Quantum mechanics
keywords[0].id	https://openalex.org/keywords/parametrization
keywords[0].score	0.8665211200714111
keywords[0].display_name	Parametrization (atmospheric modeling)
keywords[1].id	https://openalex.org/keywords/composite-number
keywords[1].score	0.6934508085250854
keywords[1].display_name	Composite number
keywords[2].id	https://openalex.org/keywords/representation
keywords[2].score	0.6698523759841919
keywords[2].display_name	Representation (politics)
keywords[3].id	https://openalex.org/keywords/mathematics
keywords[3].score	0.4446573257446289
keywords[3].display_name	Mathematics
keywords[4].id	https://openalex.org/keywords/computer-science
keywords[4].score	0.39203721284866333
keywords[4].display_name	Computer science
keywords[5].id	https://openalex.org/keywords/algorithm
keywords[5].score	0.21265774965286255
keywords[5].display_name	Algorithm
keywords[6].id	https://openalex.org/keywords/physics
keywords[6].score	0.15874773263931274
keywords[6].display_name	Physics
keywords[7].id	https://openalex.org/keywords/political-science
keywords[7].score	0.06877553462982178
keywords[7].display_name	Political science
language	en
locations[0].id	pmh:oai:arXiv.org:2502.12985
locations[0].is_oa	True
locations[0].source.id	https://openalex.org/S4306400194
locations[0].source.issn
locations[0].source.type	repository
locations[0].source.is_oa	True
locations[0].source.issn_l
locations[0].source.is_core	False
locations[0].source.is_in_doaj	False
locations[0].source.display_name	arXiv (Cornell University)
locations[0].source.host_organization	https://openalex.org/I205783295
locations[0].source.host_organization_name	Cornell University
locations[0].source.host_organization_lineage	https://openalex.org/I205783295
locations[0].license
locations[0].pdf_url	https://arxiv.org/pdf/2502.12985
locations[0].version	submittedVersion
locations[0].raw_type	text
locations[0].license_id
locations[0].is_accepted	False
locations[0].is_published	False
locations[0].raw_source_name
locations[0].landing_page_url	http://arxiv.org/abs/2502.12985
locations[1].id	doi:10.48550/arxiv.2502.12985
locations[1].is_oa	True
locations[1].source.id	https://openalex.org/S4306400194
locations[1].source.issn
locations[1].source.type	repository
locations[1].source.is_oa	True
locations[1].source.issn_l
locations[1].source.is_core	False
locations[1].source.is_in_doaj	False
locations[1].source.display_name	arXiv (Cornell University)
locations[1].source.host_organization	https://openalex.org/I205783295
locations[1].source.host_organization_name	Cornell University
locations[1].source.host_organization_lineage	https://openalex.org/I205783295
locations[1].license	cc-by
locations[1].pdf_url
locations[1].version
locations[1].raw_type	article
locations[1].license_id	https://openalex.org/licenses/cc-by
locations[1].is_accepted	False
locations[1].is_published
locations[1].raw_source_name
locations[1].landing_page_url	https://doi.org/10.48550/arxiv.2502.12985
indexed_in	arxiv, datacite
authorships[0].author.id	https://openalex.org/A5064916555
authorships[0].author.orcid
authorships[0].author.display_name	Nicolas Talabot
authorships[0].author_position	first
authorships[0].raw_author_name	Talabot, Nicolas
authorships[0].is_corresponding	False
authorships[1].author.id	https://openalex.org/A5116335886
authorships[1].author.orcid
authorships[1].author.display_name	Olivier Clerc
authorships[1].author_position	middle
authorships[1].raw_author_name	Clerc, Olivier
authorships[1].is_corresponding	False
authorships[2].author.id	https://openalex.org/A5116335887
authorships[2].author.orcid
authorships[2].author.display_name	Arda Cinar Demirtas
authorships[2].author_position	middle
authorships[2].raw_author_name	Demirtas, Arda Cinar
authorships[2].is_corresponding	False
authorships[3].author.id	https://openalex.org/A5116335888
authorships[3].author.orcid
authorships[3].author.display_name	Doruk Oner
authorships[3].author_position	middle
authorships[3].raw_author_name	Oner, Doruk
authorships[3].is_corresponding	False
authorships[4].author.id	https://openalex.org/A5038674741
authorships[4].author.orcid	https://orcid.org/0000-0002-6702-9970
authorships[4].author.display_name	Pascal Fua
authorships[4].author_position	last
authorships[4].raw_author_name	Fua, Pascal
authorships[4].is_corresponding	False
has_content.pdf	False
has_content.grobid_xml	False
is_paratext	False
open_access.is_oa	True
open_access.oa_url	https://arxiv.org/pdf/2502.12985
open_access.oa_status	green
open_access.any_repository_has_fulltext	False
created_date	2025-10-10T00:00:00
display_name	PartSDF: Part-Based Implicit Neural Representation for Composite 3D Shape Parametrization and Optimization
has_fulltext	False
is_retracted	False
updated_date	2025-11-06T06:51:31.235846
primary_topic.id	https://openalex.org/T10719
primary_topic.field.id	https://openalex.org/fields/22
primary_topic.field.display_name	Engineering
primary_topic.score	0.9937999844551086
primary_topic.domain.id	https://openalex.org/domains/3
primary_topic.domain.display_name	Physical Sciences
primary_topic.subfield.id	https://openalex.org/subfields/2206
primary_topic.subfield.display_name	Computational Mechanics
primary_topic.display_name	3D Shape Modeling and Analysis
related_works	https://openalex.org/W2899084033, https://openalex.org/W2748952813, https://openalex.org/W4391375266, https://openalex.org/W2153421756, https://openalex.org/W2054489697, https://openalex.org/W2077818434, https://openalex.org/W2361081803, https://openalex.org/W2036241269, https://openalex.org/W2109057766, https://openalex.org/W4250375811
cited_by_count	0
locations_count	2
best_oa_location.id	pmh:oai:arXiv.org:2502.12985
best_oa_location.is_oa	True
best_oa_location.source.id	https://openalex.org/S4306400194
best_oa_location.source.issn
best_oa_location.source.type	repository
best_oa_location.source.is_oa	True
best_oa_location.source.issn_l
best_oa_location.source.is_core	False
best_oa_location.source.is_in_doaj	False
best_oa_location.source.display_name	arXiv (Cornell University)
best_oa_location.source.host_organization	https://openalex.org/I205783295
best_oa_location.source.host_organization_name	Cornell University
best_oa_location.source.host_organization_lineage	https://openalex.org/I205783295
best_oa_location.license
best_oa_location.pdf_url	https://arxiv.org/pdf/2502.12985
best_oa_location.version	submittedVersion
best_oa_location.raw_type	text
best_oa_location.license_id
best_oa_location.is_accepted	False
best_oa_location.is_published	False
best_oa_location.raw_source_name
best_oa_location.landing_page_url	http://arxiv.org/abs/2502.12985
primary_location.id	pmh:oai:arXiv.org:2502.12985
primary_location.is_oa	True
primary_location.source.id	https://openalex.org/S4306400194
primary_location.source.issn
primary_location.source.type	repository
primary_location.source.is_oa	True
primary_location.source.issn_l
primary_location.source.is_core	False
primary_location.source.is_in_doaj	False
primary_location.source.display_name	arXiv (Cornell University)
primary_location.source.host_organization	https://openalex.org/I205783295
primary_location.source.host_organization_name	Cornell University
primary_location.source.host_organization_lineage	https://openalex.org/I205783295
primary_location.license
primary_location.pdf_url	https://arxiv.org/pdf/2502.12985
primary_location.version	submittedVersion
primary_location.raw_type	text
primary_location.license_id
primary_location.is_accepted	False
primary_location.is_published	False
primary_location.raw_source_name
primary_location.landing_page_url	http://arxiv.org/abs/2502.12985
publication_date	2025-02-18
publication_year	2025
referenced_works_count	0
abstract_inverted_index.a	58, 101
abstract_inverted_index.3D	1
abstract_inverted_index.In	15
abstract_inverted_index.We	55, 95
abstract_inverted_index.as	10, 23, 28, 100
abstract_inverted_index.at	120
abstract_inverted_index.in	6, 51, 90
abstract_inverted_index.is	4
abstract_inverted_index.of	30
abstract_inverted_index.or	41
abstract_inverted_index.to	77
abstract_inverted_index.and	13, 87, 92
abstract_inverted_index.are	25
abstract_inverted_index.but	80
abstract_inverted_index.for	105
abstract_inverted_index.its	78, 98
abstract_inverted_index.Code	118
abstract_inverted_index.both	85
abstract_inverted_index.most	34
abstract_inverted_index.over	111
abstract_inverted_index.part	46
abstract_inverted_index.such	9
abstract_inverted_index.that	63
abstract_inverted_index.them	43
abstract_inverted_index.with	68
abstract_inverted_index.model	38
abstract_inverted_index.parts	71
abstract_inverted_index.prior	104
abstract_inverted_index.shape	2, 74, 103
abstract_inverted_index.their	49
abstract_inverted_index.while	72, 114
abstract_inverted_index.Thanks	76
abstract_inverted_index.design	53
abstract_inverted_index.either	37
abstract_inverted_index.models	65
abstract_inverted_index.shapes	39, 67
abstract_inverted_index.simple	79
abstract_inverted_index.tasks.	54, 94
abstract_inverted_index.PartSDF	83
abstract_inverted_index.control	110
abstract_inverted_index.design,	11
abstract_inverted_index.further	96
abstract_inverted_index.methods	36
abstract_inverted_index.objects	24
abstract_inverted_index.overall	116
abstract_inverted_index.precise	109
abstract_inverted_index.propose	56
abstract_inverted_index.require	19
abstract_inverted_index.without	44
abstract_inverted_index.Accurate	0
abstract_inverted_index.However,	33
abstract_inverted_index.PartSDF,	57
abstract_inverted_index.designed	27
abstract_inverted_index.distinct	31
abstract_inverted_index.enabling	108
abstract_inverted_index.existing	35
abstract_inverted_index.implicit	60
abstract_inverted_index.limiting	48
abstract_inverted_index.available	119
abstract_inverted_index.baselines	89
abstract_inverted_index.composite	66
abstract_inverted_index.decompose	42
abstract_inverted_index.essential	5
abstract_inverted_index.framework	62
abstract_inverted_index.practice,	16
abstract_inverted_index.workflows	18
abstract_inverted_index.assemblies	29
abstract_inverted_index.coherence.	117
abstract_inverted_index.components	113
abstract_inverted_index.explicitly	64
abstract_inverted_index.generation	93
abstract_inverted_index.individual	112
abstract_inverted_index.inherently	26
abstract_inverted_index.innovative	81
abstract_inverted_index.part-based	21
abstract_inverted_index.predefined	45
abstract_inverted_index.preserving	115
abstract_inverted_index.real-world	52
abstract_inverted_index.structured	102
abstract_inverted_index.supervised	59, 86
abstract_inverted_index.components.	32
abstract_inverted_index.demonstrate	97
abstract_inverted_index.engineering	7, 17, 106
abstract_inverted_index.maintaining	73
abstract_inverted_index.outperforms	84
abstract_inverted_index.simulation.	14
abstract_inverted_index.structured,	20
abstract_inverted_index.structures,	47
abstract_inverted_index.applications	8
abstract_inverted_index.consistency.	75
abstract_inverted_index.controllable	70
abstract_inverted_index.holistically	40
abstract_inverted_index.independent,	69
abstract_inverted_index.unsupervised	88
abstract_inverted_index.applicability	50
abstract_inverted_index.applications,	107
abstract_inverted_index.architecture,	82
abstract_inverted_index.effectiveness	99
abstract_inverted_index.optimization,	12
abstract_inverted_index.reconstruction	91
abstract_inverted_index.representation	3, 61
abstract_inverted_index.representations,	22
abstract_inverted_index.https://github.com/cvlab-epfl/PartSDF.	121
cited_by_percentile_year
countries_distinct_count	0
institutions_distinct_count	5
citation_normalized_percentile