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We present Kernel Point Convolution (KPConv), a new design of point convolution, i.e. that operates on point clouds without any intermediate representation. The convolution weights of KPConv are located in Euclidean space by kernel points,…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Hugues Thomas , Charles R. Qi , Jean-Emmanuel Deschaud , Beatriz Marcotegui , François Goulette , Leonidas J. Guibas

In this work, we present a novel approach for reconstructing shape point clouds using planar sparse cross-sections with the help of generative modeling. We present unique challenges pertaining to the representation and reconstruction in…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Aradhya N. Mathur , Apoorv Khattar , Ojaswa Sharma

We introduce a statistical extension of the classic Poisson Surface Reconstruction algorithm for recovering shapes from 3D point clouds. Instead of outputting an implicit function, we represent the reconstructed shape as a modified Gaussian…

Graphics · Computer Science 2022-09-22 Silvia Sellán , Alec Jacobson

Dynamic surface reconstruction of objects from point cloud sequences is a challenging field in computer graphics. Existing approaches either require multiple regularization terms or extensive training data which, however, lead to…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Julian Kaltheuner , Alexander Oebel , Hannah Droege , Patrick Stotko , Reinhard Klein

In recent years, parametric representations of point clouds have been widely applied in tasks such as memory-efficient mapping and multi-robot collaboration. Highly adaptive models, like spline surfaces or quadrics, are computationally…

Computer Vision and Pattern Recognition · Computer Science 2025-09-19 Yuan Gao , Wei Dong

Diffusion maps are a commonly used kernel-based method for manifold learning, which can reveal intrinsic structures in data and embed them in low dimensions. However, as with most kernel methods, its implementation requires a heavy…

Machine Learning · Computer Science 2019-12-03 Scott Gigante , Jay S. Stanley , Ngan Vu , David van Dijk , Kevin Moon , Guy Wolf , Smita Krishnaswamy

This work presents a novel approach for monocular dense Simultaneous Localization and Mapping. The surface to be estimated is represented as a piecewise planar surface, defined as a group of surfels each having as parameters its position…

Systems and Control · Electrical Eng. & Systems 2020-02-17 Emanuel Trabes , Julio Daniel Dondo Gazzano , Carlos Federico Sosa Páez

The ever-increasing demand for 3D modeling in the emerging immersive applications has made point clouds an essential class of data for 3D image and video processing. Tree based structures are commonly used for representing point clouds…

Multimedia · Computer Science 2021-10-25 Hoda Roodaki , Mahdi Nazm Bojnordi

It is an important task to reconstruct surfaces from 3D point clouds. Current methods are able to reconstruct surfaces by learning Signed Distance Functions (SDFs) from single point clouds without ground truth signed distances or point…

Computer Vision and Pattern Recognition · Computer Science 2022-04-25 Baorui Ma , Yu-Shen Liu , Zhizhong Han

Topological data analysis (TDA) is a rapidly developing collection of methods for studying the shape of point cloud and other data types. One popular approach, designed to be robust to noise and outliers, is to first use a smoothing…

Methodology · Statistics 2017-12-27 Chul Moon , Noah Giansiracusa , Nicole A. Lazar

Grasping objects successfully from a single-view camera is crucial in many robot manipulation tasks. An approach to solve this problem is to leverage simulation to create large datasets of pairs of objects and grasp poses, and then learn a…

Robotics · Computer Science 2024-12-12 Joao Carvalho , An T. Le , Philipp Jahr , Qiao Sun , Julen Urain , Dorothea Koert , Jan Peters

Point clouds acquired by 3D scanning devices are often sparse, noisy, and non-uniform, causing a loss of geometric features. To facilitate the usability of point clouds in downstream applications, given such input, we present a…

Computer Vision and Pattern Recognition · Computer Science 2023-10-16 Guangshun Wei , Hao Pan , Shaojie Zhuang , Yuanfeng Zhou , Changjian Li

We present SeRP, a framework for Self-Supervised Learning of 3D point clouds. SeRP consists of encoder-decoder architecture that takes perturbed or corrupted point clouds as inputs and aims to reconstruct the original point cloud without…

Computer Vision and Pattern Recognition · Computer Science 2022-09-14 Siddhant Garg , Mudit Chaudhary

Three-dimensional (3D) point clouds are important data representations in visualization applications. The rapidly growing utility and popularity of point cloud processing strongly motivate a plethora of research activities on large-scale…

Signal Processing · Electrical Eng. & Systems 2021-11-24 Qinwen Deng , Songyang Zhang , Zhi Ding

With the development of 3D sensing technologies, point clouds have attracted increasing attention in a variety of applications for 3D object representation, such as autonomous driving, 3D immersive tele-presence and heritage reconstruction.…

Computer Vision and Pattern Recognition · Computer Science 2019-01-01 Junkun Qi , Wei Hu , Zongming Guo

It has witnessed a growing demand for efficient representation learning on point clouds in many 3D computer vision applications. Behind the success story of convolutional neural networks (CNNs) is that the data (e.g., images) are Euclidean…

Computer Vision and Pattern Recognition · Computer Science 2020-06-08 Zhongpai Gao , Guangtao Zhai , Junchi Yan , Xiaokang Yang

Light field (LF) representations aim to provide photo-realistic, free-viewpoint viewing experiences. However, the most popular LF representations are images from multiple views. Multi-view image-based representations generally need to…

Multimedia · Computer Science 2018-05-30 Xiang Zhang , Philip A. Chou , Ming-Ting Sun , Maolong Tang , Shanshe Wang , Siwei Ma , Wen Gao

Recently, numerous learning-based compression methods have been developed with outstanding performance for the coding of the geometry information of point clouds. On the contrary, limited explorations have been devoted to point cloud…

Image and Video Processing · Electrical Eng. & Systems 2022-04-05 Jianqiang Wang , Zhan Ma

Point-based representations have consistently played a vital role in geometric data structures. Most point cloud learning and processing methods typically leverage the unordered and unconstrained nature to represent the underlying geometry…

Computer Vision and Pattern Recognition · Computer Science 2025-07-28 Jionghao Wang , Cheng Lin , Yuan Liu , Rui Xu , Zhiyang Dou , Xiao-Xiao Long , Hao-Xiang Guo , Taku Komura , Wenping Wang , Xin Li

Point cloud is one of the widely used techniques for representing and storing 3D geometric data. In the past several methods have been proposed for processing point clouds. Methods such as PointNet and FoldingNet have shown promising…

Computer Vision and Pattern Recognition · Computer Science 2022-09-29 Prajwal Singh , Kaustubh Sadekar , Shanmuganathan Raman