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We present a novel approach to learning a point-wise, meaningful embedding for point-clouds in an unsupervised manner, through the use of neural-networks. The domain of point-cloud processing via neural-networks is rapidly evolving, with…

Graphics · Computer Science 2019-03-12 Matan Shoef , Sharon Fogel , Daniel Cohen-Or

Existing learning-based point cloud upsampling methods often overlook the intrinsic data distribution charac?teristics of point clouds, leading to suboptimal results when handling sparse and non-uniform point clouds. We propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Yaohui Fang , Xingce Wang

The recent advances in 3D sensing technology have made possible the capture of point clouds in significantly high resolution. However, increased detail usually comes at the expense of high storage, as well as computational costs in terms of…

Computer Vision and Pattern Recognition · Computer Science 2021-10-01 Rolandos Alexandros Potamias , Giorgos Bouritsas , Stefanos Zafeiriou

We introduce a novel technique for neural point cloud consolidation which learns from only the input point cloud. Unlike other point upsampling methods which analyze shapes via local patches, in this work, we learn from global subsets. We…

Graphics · Computer Science 2022-05-16 Gal Metzer , Rana Hanocka , Raja Giryes , Daniel Cohen-Or

Point cloud analysis has a wide range of applications in many areas such as computer vision, robotic manipulation, and autonomous driving. While deep learning has achieved remarkable success on image-based tasks, there are many unique…

Computer Vision and Pattern Recognition · Computer Science 2024-05-21 Sushmita Sarker , Prithul Sarker , Gunner Stone , Ryan Gorman , Alireza Tavakkoli , George Bebis , Javad Sattarvand

Point cloud filtering, the main bottleneck of which is removing noise (outliers) while preserving geometric features, is a fundamental problem in 3D field. The two-step schemes involving normal estimation and position update have been shown…

Graphics · Computer Science 2020-04-27 Dening Lu , Xuequan Lu , Yangxing Sun , Jun Wang

This paper surveys and evaluates some popular state of the art methods for algorithmic curvature and normal estimation. In addition to surveying existing methods we also propose a new method for robust curvature estimation and evaluate it…

Computational Geometry · Computer Science 2023-06-02 Jared Spang

This paper proposes a novel point-cloud-based place recognition system that adopts a deep learning approach for feature extraction. By using a convolutional neural network pre-trained on color images to extract features from a range image…

Computer Vision and Pattern Recognition · Computer Science 2018-10-24 Ting Sun , Ming Liu , Haoyang Ye , Dit-Yan Yeung

Three dimensional (3D) object recognition is becoming a key desired capability for many computer vision systems such as autonomous vehicles, service robots and surveillance drones to operate more effectively in unstructured environments.…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Chenxi Xiao , Juan Wachs

Point cloud completion is the task of predicting complete geometry from partial observations using a point set representation for a 3D shape. Previous approaches propose neural networks to directly estimate the whole point cloud through…

Computer Vision and Pattern Recognition · Computer Science 2020-10-12 Alexis Mendoza , Alexander Apaza , Ivan Sipiran , Cristian Lopez

We propose a novel normal estimation method called HSurf-Net, which can accurately predict normals from point clouds with noise and density variations. Previous methods focus on learning point weights to fit neighborhoods into a geometric…

Computer Vision and Pattern Recognition · Computer Science 2022-10-14 Qing Li , Yu-Shen Liu , Jin-San Cheng , Cheng Wang , Yi Fang , Zhizhong Han

We present an improved approach for 3D object detection in point cloud data based on the Frustum PointNet (F-PointNet). Compared to the original F-PointNet, our newly proposed method considers the point neighborhood when computing point…

Computer Vision and Pattern Recognition · Computer Science 2023-01-12 Chengzhi Wu , Julius Pfrommer , Jürgen Beyerer , Kangning Li , Boris Neubert

Topological Data Analysis (TDA) allows us to extract powerful topological and higher-order information on the global shape of a data set or point cloud. Tools like Persistent Homology or the Euler Transform give a single complex description…

Algebraic Topology · Mathematics 2025-11-04 Vincent P. Grande , Michael T. Schaub

Point clouds and polygonal meshes are widely used when modeling real-world scenarios. Here, point clouds arise, for instance, from acquisition processes applied in various surroundings, such as reverse engineering, rapid prototyping, or…

Computational Geometry · Computer Science 2025-11-24 Henriette Lipschütz , Ulrich Reitebuch , Konrad Polthier , Martin Skrodzki

Point cloud is point sets defined in 3D metric space. Point cloud has become one of the most significant data format for 3D representation. Its gaining increased popularity as a result of increased availability of acquisition devices, such…

Computer Vision and Pattern Recognition · Computer Science 2020-01-20 Saifullahi Aminu Bello , Shangshu Yu , Cheng Wang

We are interested in reconstructing the mesh representation of object surfaces from point clouds. Surface reconstruction is a prerequisite for downstream applications such as rendering, collision avoidance for planning, animation, etc.…

Computer Vision and Pattern Recognition · Computer Science 2020-10-01 Minghua Liu , Xiaoshuai Zhang , Hao Su

Technology to recognize the type of component represented by a point cloud is required in the reconstruction process of an as-built model of a process plant based on laser scanning. The reconstruction process of a process plant through…

Computer Vision and Pattern Recognition · Computer Science 2019-12-30 Hyungki Kim , Duhwan Mun

With the tide of artificial intelligence, we try to apply deep learning to understand 3D data. Point cloud is an important 3D data structure, which can accurately and directly reflect the real world. In this paper, we propose a simple and…

Computer Vision and Pattern Recognition · Computer Science 2019-10-01 Kang Zhiheng , Li Ning

3D point clouds are often perturbed by noise due to the inherent limitation of acquisition equipments, which obstructs downstream tasks such as surface reconstruction, rendering and so on. Previous works mostly infer the displacement of…

Computer Vision and Pattern Recognition · Computer Science 2020-08-11 Shitong Luo , Wei Hu

Point cloud analysis has drawn broader attentions due to its increasing demands in various fields. Despite the impressive performance has been achieved on several databases, researchers neglect the fact that the orientation of those point…

Computer Vision and Pattern Recognition · Computer Science 2019-11-07 Xiao Sun , Zhouhui Lian , Jianguo Xiao