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Data association is important in the point cloud registration. In this work, we propose to solve the partial-to-partial registration from a new perspective, by introducing multi-level feature interactions between the source and the…

计算机视觉与模式识别 · 计算机科学 2022-04-07 Hao Xu , Nianjin Ye , Guanghui Liu , Bing Zeng , Shuaicheng Liu

Self-supervised learning on point clouds has gained a lot of attention recently, since it addresses the label-efficiency and domain-gap problems on point cloud tasks. In this paper, we propose a novel self-supervised framework to learn…

计算机视觉与模式识别 · 计算机科学 2022-01-11 Meng-Shiun Tsai , Pei-Ze Chiang , Yi-Hsuan Tsai , Wei-Chen Chiu

Point cloud registration is a key problem for computer vision applied to robotics, medical imaging, and other applications. This problem involves finding a rigid transformation from one point cloud into another so that they align. Iterative…

计算机视觉与模式识别 · 计算机科学 2019-05-10 Yue Wang , Justin M. Solomon

Recent semi-supervised anomaly detection methods that are trained using small labeled anomaly examples and large unlabeled data (mostly normal data) have shown largely improved performance over unsupervised methods. However, these methods…

机器学习 · 计算机科学 2023-06-06 Guansong Pang , Chunhua Shen , Huidong Jin , Anton van den Hengel

Point cloud registration is the process of aligning a pair of point sets via searching for a geometric transformation. Recent works leverage the power of deep learning for registering a pair of point sets. However, unfortunately, deep…

计算几何 · 计算机科学 2020-06-12 Lingjing Wang , Xiang Li , Yi Fang

Point cloud registration is to estimate a transformation to align point clouds collected in different perspectives. In learning-based point cloud registration, a robust descriptor is vital for high-accuracy registration. However, most…

计算机视觉与模式识别 · 计算机科学 2023-07-19 Guiyu Zhao , Zhentao Guo , Xin Wang , Hongbin Ma

Deep learning has become popular in recent years primarily due to the powerful computing device such as GPUs. However, deploying these deep models to end-user devices, smart phones, or embedded systems with limited resources is challenging.…

计算机视觉与模式识别 · 计算机科学 2019-11-18 Bin Sun , Jun Li , Ming Shao , Yun Fu

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 (PCR) is a critical and challenging task in computer vision. One of the primary difficulties in PCR is identifying salient and meaningful points that exhibit consistent semantic and geometric properties across…

计算机视觉与模式识别 · 计算机科学 2024-08-29 Qianliang Wu , Yaqing Ding , Lei Luo , Haobo Jiang , Shuo Gu , Chuanwei Zhou , Jin Xie , Jian Yang

3D face registration is an important process in which a 3D face model is aligned and mapped to a template face. However, the task of 3D face registration becomes particularly challenging when dealing with partial face data, where only…

计算机视觉与模式识别 · 计算机科学 2024-05-17 Yuchen Guo , Hanqun Cao , Lok Ming Lui

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

We study the problem of extracting correspondences between a pair of point clouds for registration. For correspondence retrieval, existing works benefit from matching sparse keypoints detected from dense points but usually struggle to…

计算机视觉与模式识别 · 计算机科学 2021-10-28 Hao Yu , Fu Li , Mahdi Saleh , Benjamin Busam , Slobodan Ilic

Real-scanned point clouds are often incomplete due to viewpoint, occlusion, and noise, which hampers 3D geometric modeling and perception. Existing point cloud completion methods tend to generate global shape skeletons and hence lack fine…

计算机视觉与模式识别 · 计算机科学 2023-04-19 Liang Pan , Xinyi Chen , Zhongang Cai , Junzhe Zhang , Haiyu Zhao , Shuai Yi , Ziwei Liu

Recently developed deep learning models are able to learn to segment scenes into component objects without supervision. This opens many new and exciting avenues of research, allowing agents to take objects (or entities) as inputs, rather…

Deep point cloud registration methods face challenges to partial overlaps and rely on labeled data. To address these issues, we propose UDPReg, an unsupervised deep probabilistic registration framework for point clouds with partial…

计算机视觉与模式识别 · 计算机科学 2023-03-24 Guofeng Mei , Hao Tang , Xiaoshui Huang , Weijie Wang , Juan Liu , Jian Zhang , Luc Van Gool , Qiang Wu

3D Point cloud registration is still a very challenging topic due to the difficulty in finding the rigid transformation between two point clouds with partial correspondences, and it's even harder in the absence of any initial estimation…

计算机视觉与模式识别 · 计算机科学 2021-06-21 Zhijian Qiao , Huanshu Wei , Zhe Liu , Chuanzhe Suo , Hesheng Wang

Self-supervised learning has not been fully explored for point cloud analysis. Current frameworks are mainly based on point cloud reconstruction. Given only 3D coordinates, such approaches tend to learn local geometric structures and…

计算机视觉与模式识别 · 计算机科学 2022-03-29 Mingye Xu , Yali Wang , Zhipeng Zhou , Hongbin Xu , Yu Qiao

We propose DeepMapping, a novel registration framework using deep neural networks (DNNs) as auxiliary functions to align multiple point clouds from scratch to a globally consistent frame. We use DNNs to model the highly non-convex mapping…

计算机视觉与模式识别 · 计算机科学 2019-04-10 Li Ding , Chen Feng

As a fundamental yet challenging problem in intelligent transportation systems, point cloud registration attracts vast attention and has been attained with various deep learning-based algorithms. The unsupervised registration algorithms…

计算机视觉与模式识别 · 计算机科学 2023-04-14 Dongrui Liu , Chuanchuan Chen , Changqing Xu , Robert Qiu , Lei Chu

Recently, great progress has been made in 3D deep learning with the emergence of deep neural networks specifically designed for 3D point clouds. These networks are often trained from scratch or from pre-trained models learned purely from…

计算机视觉与模式识别 · 计算机科学 2022-10-31 Bach Tran , Binh-Son Hua , Anh Tuan Tran , Minh Hoai