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In this paper, we introduce Point2Mesh, a technique for reconstructing a surface mesh from an input point cloud. Instead of explicitly specifying a prior that encodes the expected shape properties, the prior is defined automatically using…

Graphics · Computer Science 2020-06-16 Rana Hanocka , Gal Metzer , Raja Giryes , Daniel Cohen-Or

In this paper, we introduce a novel method for comparing 3D point clouds, a critical task in various machine learning applications. By interpreting point clouds as samples from underlying probability density functions, the statistical…

Differential Geometry · Mathematics 2024-05-09 Amit Vishwakarma , KS Subrahamanian Moosath

Point cloud analysis is challenging due to irregularity and unordered data structure. To capture the 3D geometries, prior works mainly rely on exploring sophisticated local geometric extractors using convolution, graph, or attention…

Computer Vision and Pattern Recognition · Computer Science 2022-11-30 Xu Ma , Can Qin , Haoxuan You , Haoxi Ran , Yun Fu

Existing polygonal surface reconstruction methods heavily depend on input completeness and struggle with incomplete point clouds. We argue that while current point cloud completion techniques may recover missing points, they are not…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Zhaiyu Chen , Yuqing Wang , Liangliang Nan , Xiao Xiang Zhu

Semantic segmentation on point clouds is critical for 3D scene understanding. However, sparse and irregular point distributions provide limited appearance evidence, making geometry-only features insufficient to distinguish objects with…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Hojun Song , Chae-yeong Song , Jeong-hun Hong , Chaewon Moon , Dong-hwi Kim , Gahyeon Kim , Soo Ye Kim , Yiyi Liao , Jaehyup Lee , Sang-hyo Park

Statistical Shape Modeling (SSM) is a valuable tool for investigating and quantifying anatomical variations within populations of anatomies. However, traditional correspondence-based SSM generation methods have a prohibitive inference…

Computer Vision and Pattern Recognition · Computer Science 2023-07-21 Jadie Adams , Shireen Elhabian

Point cloud completion is a fundamental yet not well-solved problem in 3D vision. Current approaches often rely on 3D coordinate information and/or additional data (e.g., images and scanning viewpoints) to fill in missing parts. Unlike…

Computer Vision and Pattern Recognition · Computer Science 2025-02-27 Zhe Zhu , Honghua Chen , Xing He , Mingqiang Wei

Recently, several networks that operate directly on point clouds have been proposed. There is significant utility in understanding their mechanisms to classify point clouds, which can potentially help diagnosing these networks and designing…

Computer Vision and Pattern Recognition · Computer Science 2020-09-02 Chen Ziwen , Wenxuan Wu , Zhongang Qi , Li Fuxin

3D shape analysis has been largely focused on traditional 3D representations of point clouds and meshes, but the discrete nature of these data makes the analysis susceptible to variations in input resolutions. Recent development of neural…

Computer Vision and Pattern Recognition · Computer Science 2025-07-28 Huan Lei , Hongdong Li , Andreas Geiger , Anthony Dick

Geometric consistency, i.e. the preservation of neighbourhoods, is a natural and strong prior in 3D shape matching. Geometrically consistent matchings are crucial for many downstream applications, such as texture transfer or statistical…

Graphics · Computer Science 2025-07-30 Paul Roetzer , Florian Bernard

Point clouds are a popular representation for 3D shapes. However, they encode a particular sampling without accounting for shape priors or non-local information. We advocate for the use of a hierarchical Gaussian mixture model (hGMM), which…

Machine Learning · Computer Science 2020-03-31 Amir Hertz , Rana Hanocka , Raja Giryes , Daniel Cohen-Or

Point clouds are rich geometric data structures, where their three dimensional structure offers an excellent domain for understanding the representation learning and generative modeling in 3D space. In this work, we aim to improve the…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Lingjie Kong , Pankaj Rajak , Siamak Shakeri

Point cloud completion aims to reconstruct complete 3D shapes from partial observations, which is a challenging problem due to severe occlusions and missing geometry. Despite recent advances in multimodal techniques that leverage…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Wang Luo , Di Wu , Hengyuan Na , Yinlin Zhu , Miao Hu , Guocong Quan

The automatic semantic segmentation of the huge amount of acquired remote sensing data has become an important task in the last decade. Images and Point Clouds (PCs) are fundamental data representations, particularly in urban mapping…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Dominik Laupheimer , Norbert Haala

Point clouds have become an increasingly important representation for 3D medical imaging, offering a compact, surface-preserving alternative to traditional voxel or mesh-based approaches. Recent advances in deep learning have enabled rapid…

Image and Video Processing · Electrical Eng. & Systems 2026-02-04 Tongxu Zhang , Zhiming Liang , Bei Wang

Large-scale 3D point clouds can consist of hundreds of millions of points. Even after downsampling, these point clouds are too large for modern 3D neural networks. In order to develop a semantic understanding of the scene, the point clouds…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Maximilian Kellner , Dominik Merkle , Michael Brunklaus , Alexander Reiterer

The growing size of point clouds enlarges consumptions of storage, transmission, and computation of 3D scenes. Raw data is redundant, noisy, and non-uniform. Therefore, simplifying point clouds for achieving compact, clean, and uniform…

Computer Vision and Pattern Recognition · Computer Science 2022-03-18 Yuanqi Li , Jianwei Guo , Xinran Yang , Shun Liu , Jie Guo , Xiaopeng Zhang , Yanwen Guo

Point cloud registration is the task of estimating the rigid transformation that aligns a pair of point cloud fragments. We present an efficient and robust framework for pairwise registration of real-world 3D scans, leveraging Hough voting…

Computer Vision and Pattern Recognition · Computer Science 2021-09-10 Junha Lee , Seungwook Kim , Minsu Cho , Jaesik Park

Recently, research using point clouds has been increasing with the development of 3D scanner technology. According to this trend, the demand for high-quality point clouds is increasing, but there is still a problem with the high cost of…

Computer Vision and Pattern Recognition · Computer Science 2022-08-24 Hyungjun Lee , Sejoon Lim

3D generative modeling is accelerating as the technology allowing the capture of geometric data is developing. However, the acquired data is often inconsistent, resulting in unregistered meshes or point clouds. Many generative learning…

Computer Vision and Pattern Recognition · Computer Science 2023-06-29 Thomas Besnier , Sylvain Arguillère , Emery Pierson , Mohamed Daoudi