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We introduce a new trajectory optimization method for robotic grasping based on a point-cloud representation of robots and task spaces. In our method, robots are represented by 3D points on their link surfaces. The task space of a robot is…

Robotics · Computer Science 2024-08-09 Yu Xiang , Sai Haneesh Allu , Rohith Peddi , Tyler Summers , Vibhav Gogate

We propose a novel deep learning-based framework to tackle the challenge of semantic segmentation of large-scale point clouds of millions of points. We argue that the organization of 3D point clouds can be efficiently captured by a…

Computer Vision and Pattern Recognition · Computer Science 2018-03-29 Loic Landrieu , Martin Simonovsky

Recent studies on visual reinforcement learning (visual RL) have explored the use of 3D visual representations. However, none of these work has systematically compared the efficacy of 3D representations with 2D representations across…

Robotics · Computer Science 2023-06-13 Zhan Ling , Yunchao Yao , Xuanlin Li , Hao Su

Point cloud is a fundamental 3D representation which is widely used in real world applications such as autonomous driving. As a newly-developed media format which is characterized by complexity and irregularity, point cloud creates a need…

Computer Vision and Pattern Recognition · Computer Science 2019-05-10 Wei Yan , Yiting shao , Shan Liu , Thomas H Li , Zhu Li , Ge Li

We present a method that detects boundaries of parts in 3D shapes represented as point clouds. Our method is based on a graph convolutional network architecture that outputs a probability for a point to lie in an area that separates two or…

Computer Vision and Pattern Recognition · Computer Science 2020-07-16 Marios Loizou , Melinos Averkiou , Evangelos Kalogerakis

An accurate and rapid-response perception system is fundamental for autonomous vehicles to operate safely. 3D object detection methods handle point clouds given by LiDAR sensors to provide accurate depth and position information for each…

Robotics · Computer Science 2020-08-04 Guidong Yang , Simone Mentasti , Mattia Bersani , Yafei Wang , Francesco Braghin , Federico Cheli

In this paper, we present a novel deep method to reconstruct a point cloud of an object from a single still image. Prior arts in the field struggle to reconstruct an accurate and scalable 3D model due to either the inefficient and expensive…

Computer Vision and Pattern Recognition · Computer Science 2019-11-18 Anh-Duc Nguyen , Seonghwa Choi , Woojae Kim , Sanghoon Lee

4D radars, which provide 3D point cloud data along with Doppler velocity, are attractive components of modern automated driving systems due to their low cost and robustness under adverse weather conditions. However, they provide a…

Robotics · Computer Science 2026-03-13 Siqi Pei , Andras Palffy , Dariu M. Gavrila

Automatic synthesis of high quality 3D shapes is an ongoing and challenging area of research. While several data-driven methods have been proposed that make use of neural networks to generate 3D shapes, none of them reach the level of…

Computer Vision and Pattern Recognition · Computer Science 2019-06-28 Isaak Lim , Moritz Ibing , Leif Kobbelt

We propose a method to generate 3D shapes using point clouds. Given a point-cloud representation of a 3D shape, our method builds a kd-tree to spatially partition the points. This orders them consistently across all shapes, resulting in…

Computer Vision and Pattern Recognition · Computer Science 2017-07-21 Matheus Gadelha , Subhransu Maji , Rui Wang

With recent success of deep learning in 2D visual recognition, deep learning-based 3D point cloud analysis has received increasing attention from the community, especially due to the rapid development of autonomous driving technologies.…

Computer Vision and Pattern Recognition · Computer Science 2023-02-13 Cheng Wen , Jianzhi Long , Baosheng Yu , Dacheng Tao

Pseudo-LiDAR point cloud interpolation is a novel and challenging task in the field of autonomous driving, which aims to address the frequency mismatching problem between camera and LiDAR. Previous works represent the 3D spatial motion…

Computer Vision and Pattern Recognition · Computer Science 2020-06-23 Haojie Liu , Kang Liao , Chunyu Lin , Yao Zhao , Yulan Guo

We propose a precise and efficient normal estimation method that can deal with noise and nonuniform density for unstructured 3D point clouds. Unlike existing approaches that directly take patches and ignore the local neighborhood…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Keqiang Li , Mingyang Zhao , Huaiyu Wu , Dong-Ming Yan , Zhen Shen , Fei-Yue Wang , Gang Xiong

With the rise of large-scale models trained on broad data, in-context learning has become a new learning paradigm that has demonstrated significant potential in natural language processing and computer vision tasks. Meanwhile, in-context…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Zhongbin Fang , Xiangtai Li , Xia Li , Joachim M. Buhmann , Chen Change Loy , Mengyuan Liu

Learning-based 3D reconstruction using implicit neural representations has shown promising progress not only at the object level but also in more complicated scenes. In this paper, we propose Dynamic Plane Convolutional Occupancy Networks,…

Computer Vision and Pattern Recognition · Computer Science 2020-11-12 Stefan Lionar , Daniil Emtsev , Dusan Svilarkovic , Songyou Peng

Predicting the future can significantly improve the safety of intelligent vehicles, which is a key component in autonomous driving. 3D point clouds accurately model 3D information of surrounding environment and are crucial for intelligent…

Computer Vision and Pattern Recognition · Computer Science 2020-11-24 Fan Lu , Guang Chen , Yinlong Liu , Zhijun Li , Sanqing Qu , Tianpei Zou

In point cloud analysis, point-based methods have rapidly developed in recent years. These methods have recently focused on concise MLP structures, such as PointNeXt, which have demonstrated competitiveness with Convolutional and…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Xin Deng , WenYu Zhang , Qing Ding , XinMing Zhang

Point cloud data has been extensively studied due to its compact form and flexibility in representing complex 3D structures. The ability of point cloud data to accurately capture and represent intricate 3D geometry makes it an ideal choice…

Computer Vision and Pattern Recognition · Computer Science 2023-05-09 Ben Fei , Weidong Yang , Liwen Liu , Tianyue Luo , Rui Zhang , Yixuan Li , Ying He

The paper presents a simple and effective learning-based method for computing a discriminative 3D point cloud descriptor for place recognition purposes. Recent state-of-the-art methods have relatively complex architectures such as…

Computer Vision and Pattern Recognition · Computer Science 2022-04-11 Jacek Komorowski

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
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