3D Part Segmentation

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Overview

3D part segmentation assigns points, mesh faces, or other 3D elements to components such as a chair leg, door handle, or movable object part, supporting editing, recognition, and robotic interaction. Methods combine geometric features and point-cloud networks with multi-view image cues, generative 3D priors, and motion-based reasoning; language and vision-language models increasingly enable promptable or open-vocabulary labels. Benchmarks such as ShapeNetPart and PartNet test part labeling and decomposition, while articulated-object datasets evaluate whether systems recover parts and their joints. A central challenge is producing consistent, useful part boundaries across unfamiliar categories, partial or noisy observations, and differing levels of detail, often with limited labeled data.

Latest papers

CardsList

36 papers5 papers in the last four weeks, down 17% on the four weeks before. 0.0% of all new papers.

  1. SplatScout: Query-Driven Part-Level Referring Segmentation in Gaussian Scenes

    Oct 27, 2026Yihan Zang, Da Li, Shinkyu Park +23D Referring Segmentation3D Part Segmentation

    CEMSE Division, King Abdullah University of Science and Technology

  2. FlexPart: Text-Controlled Semantics-Aware 3D Part Segmentation at Flexible Granularity

    Oct 16, 2026Yiqun Zhao, Jiachen Xu, Yihao Zhi +53D Part Segmentation3D Referring Segmentation

    The University of Hong Kong · Tencent Hunyuan · The Chinese University of Hong Kong, Shenzhen +1

  3. A Real-World CAD Segmentation Benchmark: Comparing Rule-Based and Learning-Based Approaches through Hole Detection

    Oct 9, 2026Kai Schütte, Edgar Heinert, Matthias Rottmann3D Part Segmentation

    Volkswagen AG · Universität Osnabrück

  4. GUARD: Geometric Uncertainty-Aware Point Cloud Denoising and Segmentation for Robotic Hard Disk Drive Disassembly

    Oct 6, 2026Zuoxu Wang, Xiao LiangPoint Cloud DenoisingPoint Cloud Learning

    Zachry Department of Civil and Environmental Engineering, Texas A&M University, College Station, TX 77843 USA

  5. Organize Primitives into Semantic Parts: Reinforcement Reasoning for 3D Segmentation

    Oct 3, 2026Xiaoming Gong, Ruoyu Wu, Zhenhong Sun +53D Part Segmentation3D Point Cloud Segmentation

    Nanjing University, China · University of New South Wales, Canberra, Australia · Australian National University, Australia +1

  6. Point2Part: Unified 3D Partitioning from Point Prompts

    Sep 29, 2026Hao-Tang Tsui, Yu-Rou Tuan, Xiaoxuan Ma +33D Part Segmentation

    Carnegie Mellon University

  7. Track2Art: Articulated Object Model Recovery with Visual-Geometric Track Representations

    Sep 23, 2026Xiaotong Li, Yixiong Jing, Junsheng Ding +4Articulated Object Reconstruction3D Part Segmentation

    Department of Engineering, University of Cambridge, Cambridge CB2 1PZ, U.K. · School of Engineering and Design, Technical University of Munich · Munich Center for Machine Learning (MCML), Munich, Germany.

  8. PartLLM: A Unified Multimodal Foundation for 3D Part Segmentation

    Sep 22, 2026Zhe Zhu, Yiheng Zhang, Peng Li +93D Part Segmentation3D VLMs

    Taiyuan University of Technology, Tencent Visvise, China · Hong Kong University of Science and Technology, Tencent Visvise, China · Taiyuan University of Technology, China +6

  9. Geometric and Semantic Coupling for Interaction Understanding in 3D Scenes

    Sep 21, 2026Hanyang Kong, Xingyi Yang3D Part Segmentation3D Scene Understanding

    National University of Singapore · The Hong Kong Polytechnic University

  10. FAMOS: Feed-Forward 3D Articulation Modeling from Sparse Observations

    Sep 17, 2026Kevin Qu, Tao Sun, Massimiliano Viola +5Articulated Object Reconstruction3D ViTs

    Stanford University · ETH Zürich

  11. FunArt: Decoding Functional Structure and Articulation from Generative 3D Latents

    Sep 17, 2026Dennis Rotondi, Abdelrhman Werby, Kai O. ArrasArticulated Object Reconstruction3D Part Segmentation

    University of Stuttgart, Germany · International Max Planck Research School for Intelligent Systems

  12. UniPart: Towards Zero-shot Language-Grounded 3D Part Segmentation for Embodied Interaction

    Sep 11, 2026Xinqiang Yu, Zekun qi, Jiawei He +63D ViTsOpen-Vocabulary 3D Segmentation

    NLPR, Institute of Automation, Chinese Academy of Sciences, China · Galbot Inc., China · Beijing Academy of Artificial Intelligence, China +3

  13. AffordAny: Open-World 3D Affordance Grounding from Monocular RGB Images via Vision-Language-Guided Geometric Reasoning

    Aug 21, 2026Junqi Wu, Kaihua Tang, Xuanwen Chen +33D Affordance Grounding3D Visual Grounding

    Tongji University, Shanghai, China · Chinese Academy of Sciences, China

  14. PCT-Prompt: A Prompt-Guided Transformer Framework for Dense Prediction Tasks in Point Clouds

    Aug 17, 2026Dejun Zhang, Yanzi Bai, Yiqi Wu3D ViTs3D Point Cloud Segmentation

    China University of Geosciences · Li Auto Inc

  15. SCULPT: Subtractive Composition for 3D Part Generation

    Aug 13, 2026Sikuang Li, Chen Yang, Jiemin Fang +5Part-Level 3D Generation3D Asset Generation

    Shanghai Jiao Tong University · This work was done during an internship at Huawei. · Huawei

  16. RoboSeg: Online Part-Level Semantic Reconstruction for Robotic Manipulation via a Single Eye-in-Hand Camera

    Aug 10, 2026Zhaochen Lan, Mengxiang LinRobotic Grasping3D Semantic Mapping

    School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China

  17. PartMat: Material-Aware 3D Part Decomposition with a Single Global Latent

    Aug 3, 2026Guangming Fu, Jin Song, Yiyun Fei +3Part-Level 3D Generation3D Asset Generation

    1Nankai University, China · 2Alibaba Group, China

  18. Hi-TOPS: Hierarchical Topology-aware Scoring Prior for 3D Part Decomposition

    Aug 1, 2026Ruoyu Wu, Zhenhong Sun, Xiaoming Gong +53D Part Segmentation

    University of New South Wales, Australia · Australian National University, Australia · Nanjing University, China +2

  19. StructureGS: Structure-aware Gaussian Splatting for Articulated Object Reconstruction

    Jul 29, 2026Gahye Lee, Gyoonseo Kim, Wonjong Jang +2Articulated Object Reconstruction3D Gaussian Splatting

    POSTECH, South Korea

  20. Prompting Image Generators for Training-free Primitive Shape Abstraction

    Jul 6, 2026Gregor Kobsik, Tim Elsner, Leif Kobbelt3D Part Segmentation

  21. Beyond Point-Attached Semantics: Stable Object-Centric Semantic Fields for Robust Manipulation

    Jul 3, 2026Zheng Sun, Lerong Zhang, Zhihao Li +33D Part SegmentationBimanual Robotic Manipulation

    Department of Mechanical of Automation Engineering The Chinese University of Hong Kong China

  22. Instruct-Particulate: Scaling Feed-Forward 3D Object Articulation with Kinematic Control

    Jun 12, 2026Ruining Li, Yuxin Yao, Matt Zhou +5Articulated Object Reconstruction3D Part Segmentation

    University of Oxford · University of Cambridge · 3Nanyang Technological University

  23. PAR3D: A Unified 3D-MLLM with Part-Aware Representation for Scene Understanding

    Jun 4, 2026Shaohui Dai, Yansong Qu, You Shen +23D Part Segmentation3D Representation Learning

    Key Laboratory of Multimedia Trusted Perception and Efficient Computing, Ministry of Education of China, Xiamen University

  24. T-FunS3D: Task-Driven Hierarchical Open-Vocabulary 3D Functionality Segmentation

    Jun 4, 2026Jingkun Feng, Reza SabzevariOpen-Vocabulary 3D Segmentation3D Part Segmentation

    P4MARS Lab at the Faculty of Aerospace Engineering, Delft University of Technology

  25. A Survey on Deep Learning Architectures for Point Cloud Classification and Segmentation

    May 16, 2026Minhas Kamal, Hiranya Garbha Kumar, Balakrishnan Prabhakaran3D Point Cloud Segmentation3D Part Segmentation

    State University of New York at Albany, USA

  26. A Unified Non-Parametric and Interpretable Point Cloud Analysis via t-FCW Graph Representation

    May 14, 2026Haijian Lai, Bowen Liu, Man Xu +43D Point Cloud Segmentation3D Part Segmentation

    Faculty of Applied Sciences, Macao Polytechnic University, Macao SAR, China · University of Coimbra, CISUC/LASI, DEI · Macao Polytechnic University, Macao SAR, China

  27. EgoFun3D: Modeling Interactive Objects from Egocentric Videos using Function Templates

    Apr 13, 2026Weikun Peng, Denys Iliash, Manolis SavvaArticulated Object Reconstruction3D Part Segmentation

    Simon Fraser University

  28. FaceParts: Segmentation and Editing of Gaussian Splatting

    Mar 25, 2026Tymoteusz Zapała, Julia Farganus, Dominik Galus +33DGS Segmentation3D Part Segmentation

    Wrocław University of Science and Technology, Poland · Jagiellonian University, Poland

  29. SIMART: Decomposing Monolithic Meshes into Sim-ready Articulated Assets via MLLM

    Mar 24, 2026Chuanrui Zhang, Minghan Qin, Yuang Wang +3Articulated 3D Asset Generation3D Asset Generation

    ByteDance Seed · NTU

  30. Material Magic Wand: Material-Aware Grouping of 3D Parts in Untextured Meshes

    Mar 18, 2026Umangi Jain, Vladimir Kim, Matheus Gadelha +23D Representation Learning3D Part Segmentation

    University of Toronto · Adobe Research