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A generative model for high-fidelity point clouds is of great importance in synthesizing 3d environments for applications such as autonomous driving and robotics. Despite the recent success of deep generative models for 2d images, it is…

计算机视觉与模式识别 · 计算机科学 2023-07-25 Cheng Wen , Baosheng Yu , Rao Fu , Dacheng Tao

Recent progress of semantic point clouds analysis is largely driven by synthetic data (e.g., the ModelNet and the ShapeNet), which are typically complete, well-aligned and noisy free. Therefore, representations of those ideal synthetic…

计算机视觉与模式识别 · 计算机科学 2024-09-12 Li Yu , Hongchao Zhong , Longkun Zou , Ke Chen , Pan Gao

Point cloud has been widely used in the field of autonomous driving since it can provide a more comprehensive three-dimensional representation of the environment than 2D images. Point-wise prediction based on point cloud sequence (PCS) is…

机器人学 · 计算机科学 2021-09-16 Haowen Wang , Zirui Li , Jianwei Gong

The development of practical applications, such as autonomous driving and robotics, has brought increasing attention to 3D point cloud understanding. While deep learning has achieved remarkable success on image-based tasks, there are many…

计算机视觉与模式识别 · 计算机科学 2021-05-25 Haoming Lu , Humphrey Shi

Point clouds are the native output of many real-world 3D sensors. To borrow the success of 2D convolutional network architectures, a majority of popular 3D perception models voxelize the points, which can result in a loss of local geometric…

计算机视觉与模式识别 · 计算机科学 2019-07-31 Yuwen Xiong , Mengye Ren , Renjie Liao , Kelvin Wong , Raquel Urtasun

The remarkable breakthroughs in point cloud representation learning have boosted their usage in real-world applications such as self-driving cars and virtual reality. However, these applications usually have an urgent requirement for not…

计算机视觉与模式识别 · 计算机科学 2022-05-24 Linfeng Zhang , Runpei Dong , Hung-Shuo Tai , Kaisheng Ma

In this paper, we propose a monocular 3D object detection framework in the domain of autonomous driving. Unlike previous image-based methods which focus on RGB feature extracted from 2D images, our method solves this problem in the…

计算机视觉与模式识别 · 计算机科学 2021-03-31 Xinzhu Ma , Zhihui Wang , Haojie Li , Pengbo Zhang , Xin Fan , Wanli Ouyang

Accurate detection of objects in 3D point clouds is a key problem in autonomous driving systems. Collaborative perception can incorporate information from spatially diverse sensors and provide significant benefits for improving the…

计算机视觉与模式识别 · 计算机科学 2022-05-25 Junyong Wang , Yuan Zeng , Yi Gong

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

Point cloud based place recognition is still an open issue due to the difficulty in extracting local features from the raw 3D point cloud and generating the global descriptor, and it's even harder in the large-scale dynamic environments. In…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Zhe Liu , Shunbo Zhou , Chuanzhe Suo , Yingtian Liu , Peng Yin , Hesheng Wang , Yun-Hui Liu

Explainability is an important factor to drive user trust in the use of neural networks for tasks with material impact. However, most of the work done in this area focuses on image analysis and does not take into account 3D data. We extend…

计算机视觉与模式识别 · 计算机科学 2020-06-11 Ananya Gupta , Simon Watson , Hujun Yin

Accurate rail location is a crucial part in the railway support driving system for safety monitoring. LiDAR can obtain point clouds that carry 3D information for the railway environment, especially in darkness and terrible weather…

计算机视觉与模式识别 · 计算机科学 2022-08-10 Xinyi Yu , Weiqi He , Xuecheng Qian , Yang Yang , Linlin Ou

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…

计算机视觉与模式识别 · 计算机科学 2020-06-24 Yulan Guo , Hanyun Wang , Qingyong Hu , Hao Liu , Li Liu , Mohammed Bennamoun

Point clouds provide a flexible and natural representation usable in countless applications such as robotics or self-driving cars. Recently, deep neural networks operating on raw point cloud data have shown promising results on supervised…

机器学习 · 计算机科学 2019-06-04 Jonathan Sauder , Bjarne Sievers

Recently, the advancement of deep learning in discriminative feature learning from 3D LiDAR data has led to rapid development in the field of autonomous driving. However, automated processing uneven, unstructured, noisy, and massive 3D…

计算机视觉与模式识别 · 计算机科学 2020-05-21 Ying Li , Lingfei Ma , Zilong Zhong , Fei Liu , Dongpu Cao , Jonathan Li , Michael A. Chapman

We present a new point-based approach for modeling the appearance of real scenes. The approach uses a raw point cloud as the geometric representation of a scene, and augments each point with a learnable neural descriptor that encodes local…

计算机视觉与模式识别 · 计算机科学 2020-04-07 Kara-Ali Aliev , Artem Sevastopolsky , Maria Kolos , Dmitry Ulyanov , Victor Lempitsky

3D point cloud registration is a fundamental problem in computer vision and robotics. There has been extensive research in this area, but existing methods meet great challenges in situations with a large proportion of outliers and time…

计算机视觉与模式识别 · 计算机科学 2021-03-09 Kexue Fu , Shaolei Liu , Xiaoyuan Luo , Manning Wang

Exploiting past 3D LiDAR scans to predict future point clouds is a promising method for autonomous mobile systems to realize foresighted state estimation, collision avoidance, and planning. In this paper, we address the problem of…

计算机视觉与模式识别 · 计算机科学 2021-10-19 Benedikt Mersch , Xieyuanli Chen , Jens Behley , Cyrill Stachniss

Many applications in robotics and human-computer interaction can benefit from understanding 3D motion of points in a dynamic environment, widely noted as scene flow. While most previous methods focus on stereo and RGB-D images as input, few…

计算机视觉与模式识别 · 计算机科学 2019-07-23 Xingyu Liu , Charles R. Qi , Leonidas J. Guibas

State-of-the-art methods for large-scale driving-scene LiDAR segmentation often project the point clouds to 2D space and then process them via 2D convolution. Although this corporation shows the competitiveness in the point cloud, it…

计算机视觉与模式识别 · 计算机科学 2020-11-20 Xinge Zhu , Hui Zhou , Tai Wang , Fangzhou Hong , Yuexin Ma , Wei Li , Hongsheng Li , Dahua Lin