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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…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Jiapeng Tang , Dan Xu , Kui Jia , Lei Zhang

There is a growing number of tasks that work directly on point clouds. As the size of the point cloud grows, so do the computational demands of these tasks. A possible solution is to sample the point cloud first. Classic sampling…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Itai Lang , Asaf Manor , Shai Avidan

Large-scale point cloud generated from 3D sensors is more accurate than its image-based counterpart. However, it is seldom used in visual pose estimation due to the difficulty in obtaining 2D-3D image to point cloud correspondences. In this…

Computer Vision and Pattern Recognition · Computer Science 2019-04-23 Mengdan Feng , Sixing Hu , Marcelo Ang , Gim Hee Lee

This paper studies 3D dense shape correspondence, a key shape analysis application in computer vision and graphics. We introduce a novel hybrid geometric deep learning-based model that learns geometrically meaningful and…

Computer Vision and Pattern Recognition · Computer Science 2022-11-14 Mohammad Farazi , Wenhui Zhu , Zhangsihao Yang , Yalin Wang

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

In this work, we exploit the unsupervised domain adaptation problem for radiology image interpretation across domains. Specifically, we study how to adapt the disease recognition model from a labeled source domain to an unlabeled target…

Image and Video Processing · Electrical Eng. & Systems 2019-08-22 Yuxing Tang , Youbao Tang , Veit Sandfort , Jing Xiao , Ronald M. Summers

The engineering vision of relying on the ``smart sky" for supporting air traffic and the ``Internet above the clouds" for in-flight entertainment has become imperative for the future aircraft industry. Aeronautical ad hoc Networking (AANET)…

Networking and Internet Architecture · Computer Science 2019-05-21 Jiankang Zhang , Taihai Chen , Shida Zhong , Jingjing Wang , Wenbo Zhang , Xin Zuo , Robert G. Maunder , Lajos Hanzo

We propose a novel, end-to-end trainable, deep network called ParSeNet that decomposes a 3D point cloud into parametric surface patches, including B-spline patches as well as basic geometric primitives. ParSeNet is trained on a large-scale…

Computer Vision and Pattern Recognition · Computer Science 2020-09-23 Gopal Sharma , Difan Liu , Subhransu Maji , Evangelos Kalogerakis , Siddhartha Chaudhuri , Radomír Měch

Transformer-based networks have achieved impressive performance in 3D point cloud understanding. However, most of them concentrate on aggregating local features, but neglect to directly model global dependencies, which results in a limited…

Computer Vision and Pattern Recognition · Computer Science 2023-04-03 Hengjia Li , Tu Zheng , Zhihao Chi , Zheng Yang , Wenxiao Wang , Boxi Wu , Binbin Lin , Deng Cai

In this paper, we present DV-Matcher, a novel learning-based framework for estimating dense correspondences between non-rigidly deformable point clouds. Learning directly from unstructured point clouds without meshing or manual labelling,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Zhangquan Chen , Puhua Jiang , Ruqi Huang

Registration of point clouds collected from a pair of distant vehicles provides a comprehensive and accurate 3D view of the driving scenario, which is vital for driving safety related applications, yet existing literature suffers from the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Quan Liu , Hongzi Zhu , Zhenxi Wang , Yunsong Zhou , Shan Chang , Minyi Guo

Although 3D point cloud data has received widespread attentions as a general form of 3D signal expression, applying point clouds to the task of dense correspondence estimation between 3D shapes has not been investigated widely. Furthermore,…

Computer Vision and Pattern Recognition · Computer Science 2022-10-27 Zhiyuan Zhang , Jiadai Sun , Yuchao Dai , Bin Fan , Qi Liu

3D object detection from raw and sparse point clouds has been far less treated to date, compared with its 2D counterpart. In this paper, we propose a novel framework called FVNet for 3D front-view proposal generation and object detection…

Computer Vision and Pattern Recognition · Computer Science 2019-11-27 Jie Zhou , Xin Tan , Zhiwei Shao , Lizhuang Ma

We propose a self-supervised approach to deep surface deformation. Given a pair of shapes, our algorithm directly predicts a parametric transformation from one shape to the other respecting correspondences. Our insight is to use…

Computer Vision and Pattern Recognition · Computer Science 2019-07-09 Thibault Groueix , Matthew Fisher , Vladimir G. Kim , Bryan C. Russell , Mathieu Aubry

Multiview point cloud registration is a fundamental task for constructing globally consistent 3D models. Existing approaches typically rely on feature extraction and data association across multiple point clouds; however, these processes…

Computer Vision and Pattern Recognition · Computer Science 2025-06-25 Yiran Zhou , Yingyu Wang , Shoudong Huang , Liang Zhao

Current methodologies in point cloud analysis predominantly explore 3D geometries, often achieved through the introduction of intricate learnable geometric extractors in the encoder or by deepening networks with repeated blocks. However,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-21 Lipeng Gu , Xuefeng Yan , Liangliang Nan , Dingkun Zhu , Honghua Chen , Weiming Wang , Mingqiang Wei

Recently, 3D anomaly detection, a crucial problem involving fine-grained geometry discrimination, is getting more attention. However, the lack of abundant real 3D anomaly data limits the scalability of current models. To enable scalable…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Wenqiao Li , Xiaohao Xu , Yao Gu , Bozhong Zheng , Shenghua Gao , Yingna Wu

Task-oriented communication presents a promising approach to improve the communication efficiency of edge inference systems by optimizing learning-based modules to extract and transmit relevant task information. However, real-time…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Songjie Xie , Hengtao He , Shenghui Song , Jun Zhang , Khaled B. Letaief

It is challenging to reconstruct 3D point clouds in unseen classes from single 2D images. Instead of object-centered coordinate system, current methods generalized global priors learned in seen classes to reconstruct 3D shapes from unseen…

Computer Vision and Pattern Recognition · Computer Science 2024-09-05 Chao Chen , Yu-Shen Liu , Zhizhong Han

The core of self-supervised point cloud learning lies in setting up appropriate pretext tasks, to construct a pre-training framework that enables the encoder to perceive 3D objects effectively. In this paper, we integrate two prevalent…

Computer Vision and Pattern Recognition · Computer Science 2025-04-07 Yun Liu , Peng Li , Xuefeng Yan , Liangliang Nan , Bing Wang , Honghua Chen , Lina Gong , Wei Zhao , Mingqiang Wei
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