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Place recognition is a fundamental component of robotics, and has seen tremendous improvements through the use of deep learning models in recent years. Networks can experience significant drops in performance when deployed in unseen or…

Computer Vision and Pattern Recognition · Computer Science 2022-11-30 Joshua Knights , Peyman Moghadam , Milad Ramezani , Sridha Sridharan , Clinton Fookes

Point clouds have grown in importance in the way computers perceive the world. From LIDAR sensors in autonomous cars and drones to the time of flight and stereo vision systems in our phones, point clouds are everywhere. Despite their…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Vinit Sarode , Animesh Dhagat , Rangaprasad Arun Srivatsan , Nicolas Zevallos , Simon Lucey , Howie Choset

Recent Transformer-based methods have achieved advanced performance in point cloud registration by utilizing advantages of the Transformer in order-invariance and modeling dependency to aggregate information. However, they still suffer from…

Computer Vision and Pattern Recognition · Computer Science 2021-12-20 Guangyan Chen , Meiling Wang , Yufeng Yue , Qingxiang Zhang , Li Yuan

We study the problem of extracting accurate correspondences for point cloud registration. Recent keypoint-free methods have shown great potential through bypassing the detection of repeatable keypoints which is difficult to do especially in…

Computer Vision and Pattern Recognition · Computer Science 2023-08-09 Zheng Qin , Hao Yu , Changjian Wang , Yulan Guo , Yuxing Peng , Slobodan Ilic , Dewen Hu , Kai Xu

Point clouds are characterized by irregularity and unstructuredness, which pose challenges in efficient data exploitation and discriminative feature extraction. In this paper, we present an unsupervised deep neural architecture called…

Computer Vision and Pattern Recognition · Computer Science 2023-02-08 Qijian Zhang , Junhui Hou , Yue Qian , Yiming Zeng , Juyong Zhang , Ying He

Efficient analysis of point clouds holds paramount significance in real-world 3D applications. Currently, prevailing point-based models adhere to the PointNet++ methodology, which involves embedding and abstracting point features within a…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Jianan Li , Jie Wang , Tingfa Xu

We present a novel deep neural network architecture for end-to-end scene flow estimation that directly operates on large-scale 3D point clouds. Inspired by Bilateral Convolutional Layers (BCL), we propose novel DownBCL, UpBCL, and CorrBCL…

Computer Vision and Pattern Recognition · Computer Science 2019-06-14 Xiuye Gu , Yijie Wang , Chongruo wu , Yong-Jae lee , Panqu Wang

Multi-instance point cloud registration aims to estimate the pose of all instances of a model point cloud in the whole scene. Existing methods all adopt the strategy of first obtaining the global correspondence and then clustering to obtain…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Liyuan Zhang , Le Hui , Qi Liu , Bo Li , Yuchao Dai

In the field of Connectomics, a primary problem is that of 3D neuron segmentation. Although deep learning-based methods have achieved remarkable accuracy, errors still exist, especially in regions with image defects. One common type of…

Computer Vision and Pattern Recognition · Computer Science 2021-12-14 Jules Berman , Dmitri B. Chklovskii , Jingpeng Wu

Correlative microscopy aims at combining two or more modalities to gain more information than the one provided by one modality on the same biological structure. Registration is needed at different steps of correlative microscopies…

Computer Vision and Pattern Recognition · Computer Science 2020-12-02 Stephan Kunne , Guillaume Potier , Jean Mérot , Perrine Paul-Gilloteaux

High-confidence overlap prediction and accurate correspondences are critical for cutting-edge models to align paired point clouds in a partial-to-partial manner. However, there inherently exists uncertainty between the overlapping and…

Computer Vision and Pattern Recognition · Computer Science 2022-09-02 Zhilei Chen , Honghua Chen , Lina Gong , Xuefeng Yan , Jun Wang , Yanwen Guo , Jing Qin , Mingqiang Wei

Point cloud learning has lately attracted increasing attention due to its wide applications in many areas, such as computer vision, autonomous driving, and robotics. As a dominating technique in AI, deep learning has been successfully used…

Computer Vision and Pattern Recognition · Computer Science 2020-06-24 Yulan Guo , Hanyun Wang , Qingyong Hu , Hao Liu , Li Liu , Mohammed Bennamoun

In this paper, we compare several event classification architectures defined on the point cloud representation of collider events. These approaches, which are based on the frameworks of deep sets and edge convolutions, circumvent many of…

High Energy Physics - Phenomenology · Physics 2023-07-19 Peter Onyisi , Delon Shen , Jesse Thaler

3D reconstruction from single view images is an ill-posed problem. Inferring the hidden regions from self-occluded images is both challenging and ambiguous. We propose a two-pronged approach to address these issues. To better incorporate…

Computer Vision and Pattern Recognition · Computer Science 2019-03-27 Priyanka Mandikal , K L Navaneet , Mayank Agarwal , R. Venkatesh Babu

Point cloud registration is an important task in robotics and autonomous driving to estimate the ego-motion of the vehicle. Recent advances following the coarse-to-fine manner show promising potential in point cloud registration. However,…

Computer Vision and Pattern Recognition · Computer Science 2023-04-03 Chenghao Shi , Xieyuanli Chen , Huimin Lu , Wenbang Deng , Junhao Xiao , Bin Dai

We present a novel deep learning framework for flow field predictions in irregular domains when the solution is a function of the geometry of either the domain or objects inside the domain. Grid vertices in a computational fluid dynamics…

Machine Learning · Computer Science 2021-09-20 Ali Kashefi , Davis Rempe , Leonidas J. Guibas

Rigid Point Cloud Registration (PCR) algorithms aim to estimate the 6-DOF relative motion between two point clouds, which is important in various fields, including autonomous driving. Recent years have seen a significant improvement in…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Amnon Drory , Shai Avidan , Raja Giryes

Point clouds have shown significant potential in various domains, including Simultaneous Localization and Mapping (SLAM). However, existing approaches either rely on dense point clouds to achieve high localization accuracy or use…

Computer Vision and Pattern Recognition · Computer Science 2023-12-06 Xiaze Zhang , Ziheng Ding , Qi Jing , Yuejie Zhang , Wenchao Ding , Rui Feng

Efficiently identifying accurate correspondences between point clouds is crucial for both rigid and non-rigid point cloud registration. Existing methods usually rely on geometric or semantic feature embeddings to establish correspondences…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Haihua Shi , Qianliang Wu

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