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Establishing correspondence between shapes is a fundamental problem in geometry processing, arising in a wide variety of applications. The problem is especially difficult in the setting of non-isometric deformations, as well as in the…

计算机视觉与模式识别 · 计算机科学 2016-05-23 Davide Boscaini , Jonathan Masci , Emanuele Rodolà , Michael M. Bronstein

This paper introduces a new method for 3D point cloud registration based on deep learning. The architecture is composed of three distinct blocs: (i) an encoder composed of a convolutional graph-based descriptor that encodes the immediate…

计算机视觉与模式识别 · 计算机科学 2023-10-27 Karim Slimani , Brahim Tamadazte , Catherine Achard

Point cloud registration is a key task in many computational fields. Previous correspondence matching based methods require the inputs to have distinctive geometric structures to fit a 3D rigid transformation according to point-wise sparse…

计算机视觉与模式识别 · 计算机科学 2021-09-14 Hao Xu , Shuaicheng Liu , Guangfu Wang , Guanghui Liu , Bing Zeng

3D point cloud is an efficient and flexible representation of 3D structures. Recently, neural networks operating on point clouds have shown superior performance on 3D understanding tasks such as shape classification and part segmentation.…

计算机视觉与模式识别 · 计算机科学 2019-10-21 Wentao Yuan , David Held , Christoph Mertz , Martial Hebert

3D point clouds deep learning is a promising field of research that allows a neural network to learn features of point clouds directly, making it a robust tool for solving 3D scene understanding tasks. While recent works show that point…

计算机视觉与模式识别 · 计算机科学 2022-03-22 Zhiyuan Zhang , Binh-Son Hua , Sai-Kit Yeung

Dense 3D shape correspondence remains a central challenge in computer vision and graphics as many deep learning approaches still rely on intermediate geometric features or handcrafted descriptors, limiting their effectiveness under…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Maolin Gao , Shao Jie Hu-Chen , Congyue Deng , Riccardo Marin , Leonidas Guibas , Daniel Cremers

Thanks to the application of deep learning technology in point cloud processing of the remote sensing field, point cloud segmentation has become a research hotspot in recent years, which can be applied to real-world 3D, smart cities, and…

计算机视觉与模式识别 · 计算机科学 2024-08-06 Yong-Qiang Mao , Hanbo Bi , Xuexue Li , Kaiqiang Chen , Zhirui Wang , Xian Sun , Kun Fu

We investigate transductive zero-shot point cloud semantic segmentation, where the network is trained on seen objects and able to segment unseen objects. The 3D geometric elements are essential cues to imply a novel 3D object type. However,…

计算机视觉与模式识别 · 计算机科学 2023-10-02 Runnan Chen , Xinge Zhu , Nenglun Chen , Wei Li , Yuexin Ma , Ruigang Yang , Wenping Wang

Representing complex 3D objects as simple geometric primitives, known as shape abstraction, is important for geometric modeling, structural analysis, and shape synthesis. In this paper, we propose an unsupervised shape abstraction method to…

计算机视觉与模式识别 · 计算机科学 2021-06-08 Kaizhi Yang , Xuejin Chen

3D point cloud completion is very challenging because it heavily relies on the accurate understanding of the complex 3D shapes (e.g., high-curvature, concave/convex, and hollowed-out 3D shapes) and the unknown & diverse patterns of the…

计算机视觉与模式识别 · 计算机科学 2021-07-29 Qing Guo , Zhijie Wang , Felix Juefei-Xu , Di Lin , Lei Ma , Wei Feng , Yang Liu

Representing 3D shape in deep learning frameworks in an accurate, efficient and compact manner still remains an open challenge. Most existing work addresses this issue by employing voxel-based representations. While these approaches benefit…

计算机视觉与模式识别 · 计算机科学 2019-01-25 Dominic Jack , Jhony K. Pontes , Sridha Sridharan , Clinton Fookes , Sareh Shirazi , Frederic Maire , Anders Eriksson

This paper focuses on the task of 4D shape reconstruction from a sequence of point clouds. Despite the recent success achieved by extending deep implicit representations into 4D space, it is still a great challenge in two respects, i.e. how…

计算机视觉与模式识别 · 计算机科学 2021-03-31 Jiapeng Tang , Dan Xu , Kui Jia , Lei Zhang

Given new pairs of source and target point sets, standard point set registration methods often repeatedly conduct the independent iterative search of desired geometric transformation to align the source point set with the target one. This…

图形学 · 计算机科学 2019-07-30 Lingjing Wang , Xiang Li , Jianchun Chen , Yi Fang

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…

计算机视觉与模式识别 · 计算机科学 2023-10-16 Guangshun Wei , Hao Pan , Shaojie Zhuang , Yuanfeng Zhou , Changjian Li

Fully exploring correlation among points in point clouds is essential for their feature modeling. This paper presents a novel end-to-end graph model, named Point2Node, to represent a given point cloud. Point2Node can dynamically explore…

计算机视觉与模式识别 · 计算机科学 2019-12-24 Wenkai Han , Chenglu Wen , Cheng Wang , Xin Li , Qing Li

Point cloud data have been widely explored due to its superior accuracy and robustness under various adverse situations. Meanwhile, deep neural networks (DNNs) have achieved very impressive success in various applications such as…

计算机视觉与模式识别 · 计算机科学 2023-04-04 Aoran Xiao , Jiaxing Huang , Dayan Guan , Xiaoqin Zhang , Shijian Lu , Ling Shao

Deep learning on point clouds has made a lot of progress recently. Many point cloud dedicated deep learning frameworks, such as PointNet and PointNet++, have shown advantages in accuracy and speed comparing to those using traditional 3D…

计算几何 · 计算机科学 2018-12-18 Guanghua Pan , Jun Wang , Rendong Ying , Peilin Liu

The manual annotation for large-scale point clouds costs a lot of time and is usually unavailable in harsh real-world scenarios. Inspired by the great success of the pre-training and fine-tuning paradigm in both vision and language tasks,…

计算机视觉与模式识别 · 计算机科学 2022-09-26 Chao Sun , Zhedong Zheng , Xiaohan Wang , Mingliang Xu , Yi Yang

Dense point cloud generation from a sparse or incomplete point cloud is a crucial and challenging problem in 3D computer vision and computer graphics. So far, the existing methods are either computationally too expensive, suffer from…

计算机视觉与模式识别 · 计算机科学 2024-03-14 Abol Basher , Jani Boutellier

3D shape recognition has attracted more and more attention as a task of 3D vision research. The proliferation of 3D data encourages various deep learning methods based on 3D data. Now there have been many deep learning models based on…

计算机视觉与模式识别 · 计算机科学 2020-03-02 Yaxin Zhao , Jichao Jiao , Tangkun Zhang