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3D single object tracking remains a challenging problem due to the sparsity and incompleteness of the point clouds. Existing algorithms attempt to address the challenges in two strategies. The first strategy is to learn dense geometric…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Jingwen Zhang , Zikun Zhou , Guangming Lu , Jiandong Tian , Wenjie Pei

Point clouds obtained from photogrammetry are noisy and incomplete models of reality. We propose an evolutionary optimization methodology that is able to approximate the underlying object geometry on such point clouds. This approach assumes…

Computer Vision and Pattern Recognition · Computer Science 2019-01-23 Jean F. Liénard

DUSt3R has recently shown that one can reduce many tasks in multi-view geometry, including estimating camera intrinsics and extrinsics, reconstructing the scene in 3D, and establishing image correspondences, to the prediction of a pair of…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Edgar Sucar , Zihang Lai , Eldar Insafutdinov , Andrea Vedaldi

With the rapid development of computer graphics and vision, several three-dimensional (3D) reconstruction techniques have been proposed and used to obtain the 3D representation of objects in the form of point cloud models, mesh models, and…

Computer Vision and Pattern Recognition · Computer Science 2021-12-02 Rui Wang

We introduce a continuous global optimization method to the field of surface reconstruction from discrete noisy cloud of points with weak information on orientation. The proposed method uses an energy functional combining flux-based…

Graphics · Computer Science 2017-08-01 Rongjiang Pan , Vaclav Skala

Point cloud completion aims to recover complete 3D geometry from partial observations caused by limited viewpoints and occlusions. Existing learning-based works, including 3D Convolutional Neural Network (CNN)-based, point-based, and…

Computer Vision and Pattern Recognition · Computer Science 2026-01-28 Jiangyuan Liu , Yuhao Zhao , Hongxuan Ma , Zhe Liu , Jian Wang , Wei Zou

In this paper, we propose PointRCNN for 3D object detection from raw point cloud. The whole framework is composed of two stages: stage-1 for the bottom-up 3D proposal generation and stage-2 for refining proposals in the canonical…

Computer Vision and Pattern Recognition · Computer Science 2019-05-17 Shaoshuai Shi , Xiaogang Wang , Hongsheng Li

Existing polygonal surface reconstruction methods heavily depend on input completeness and struggle with incomplete point clouds. We argue that while current point cloud completion techniques may recover missing points, they are not…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Zhaiyu Chen , Yuqing Wang , Liangliang Nan , Xiao Xiang Zhu

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 cloud completion referring to completing 3D shapes from partial 3D point clouds is a fundamental problem for 3D point cloud analysis tasks. Benefiting from the development of deep neural networks, researches on point cloud completion…

Computer Vision and Pattern Recognition · Computer Science 2022-03-17 Jun Wang , Ying Cui , Dongyan Guo , Junxia Li , Qingshan Liu , Chunhua Shen

Point cloud completion is a generation and estimation issue derived from the partial point clouds, which plays a vital role in the applications in 3D computer vision. The progress of deep learning (DL) has impressively improved the…

Computer Vision and Pattern Recognition · Computer Science 2023-01-02 Ben Fei , Weidong Yang , Wenming Chen , Zhijun Li , Yikang Li , Tao Ma , Xing Hu , Lipeng Ma

Point clouds arising from structured data, mainly as a result of CT scans, provides special properties on the distribution of points and the distances between those. Yet often, the amount of data provided can not compare to unstructured…

Computational Geometry · Computer Science 2017-02-16 Franziska Lippoldt , Hartmut Schwandt

Reconstructing 3D models from 2D images is one of the fundamental problems in computer vision. In this work, we propose a deep learning technique for 3D object reconstruction from a single image. Contrary to recent works that either use 3D…

Computer Vision and Pattern Recognition · Computer Science 2020-05-06 K L Navaneet , Ansu Mathew , Shashank Kashyap , Wei-Chih Hung , Varun Jampani , R. Venkatesh Babu

Point clouds are a set of data points in space to represent the 3D geometry of objects. A fundamental step in the processing is to identify a subset of points to represent the shape. While traditional sampling methods often ignore to…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Pierre Onghena , Santiago Velasco-Forero , Beatriz Marcotegui

Point cloud is a critical 3D representation with many emerging applications. Because of the point sparsity and irregularity, high-quality rendering of point clouds is challenging and often requires complex computations to recover the…

Computer Vision and Pattern Recognition · Computer Science 2024-09-26 Yueyu Hu , Ran Gong , Qi Sun , Yao Wang

A key step in any scanning-based asset creation workflow is to convert unordered point clouds to a surface. Classical methods (e.g., Poisson reconstruction) start to degrade in the presence of noisy and partial scans. Hence, deep learning…

Computer Vision and Pattern Recognition · Computer Science 2024-02-14 Philipp Erler , Paul Guerrero , Stefan Ohrhallinger , Michael Wimmer , Niloy J. Mitra

Critical to the registration of point clouds is the establishment of a set of accurate correspondences between points in 3D space. The correspondence problem is generally addressed by the design of discriminative 3D local descriptors on the…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Lei Zhou , Siyu Zhu , Zixin Luo , Tianwei Shen , Runze Zhang , Mingmin Zhen , Tian Fang , Long Quan

Point clouds denote a prominent solution for the representation of 3D photo-realistic content in immersive applications. Similarly to other imaging modalities, quality predictions for point cloud contents are vital for a wide range of…

Multimedia · Computer Science 2024-08-14 Evangelos Alexiou , Xuemei Zhou , Irene Viola , Pablo Cesar

Using heterogeneous depth cameras and 3D scanners in 3D face verification causes variations in the resolution of the 3D point clouds. To solve this issue, previous studies use 3D registration techniques. Out of these proposed techniques,…

Computer Vision and Pattern Recognition · Computer Science 2018-11-13 Ahmed ElSayed , Elif Kongar , Ausif Mahmood , Tarek Sobh , Terrance Boult

We present a fully automatic approach for reconstructing compact 3D building models from large-scale airborne point clouds. A major challenge of urban reconstruction from airborne LiDAR point clouds lies in that the vertical walls are…

Computer Vision and Pattern Recognition · Computer Science 2023-03-10 Jin Huang , Jantien Stoter , Ravi Peters , Liangliang Nan