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Storing and transmitting LiDAR point cloud data is essential for many AV applications, such as training data collection, remote control, cloud services or SLAM. However, due to the sparsity and unordered structure of the data, it is…

Computer Vision and Pattern Recognition · Computer Science 2024-02-20 Till Beemelmanns , Yuchen Tao , Bastian Lampe , Lennart Reiher , Raphael van Kempen , Timo Woopen , Lutz Eckstein

Identifying changes in a pair of 3D aerial LiDAR point clouds, obtained during two distinct time periods over the same geographic region presents a significant challenge due to the disparities in spatial coverage and the presence of noise…

Computer Vision and Pattern Recognition · Computer Science 2023-08-31 Peter Naylor , Diego Di Carlo , Arianna Traviglia , Makoto Yamada , Marco Fiorucci

Recently, polar-based representation has shown promising properties in perceptual tasks. In addition to Cartesian-based approaches, which separate point clouds unevenly, representing point clouds as polar grids has been recognized as an…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Ming Nie , Yujing Xue , Chunwei Wang , Chaoqiang Ye , Hang Xu , Xinge Zhu , Qingqiu Huang , Michael Bi Mi , Xinchao Wang , Li Zhang

The growing size of point clouds enlarges consumptions of storage, transmission, and computation of 3D scenes. Raw data is redundant, noisy, and non-uniform. Therefore, simplifying point clouds for achieving compact, clean, and uniform…

Computer Vision and Pattern Recognition · Computer Science 2022-03-18 Yuanqi Li , Jianwei Guo , Xinran Yang , Shun Liu , Jie Guo , Xiaopeng Zhang , Yanwen Guo

3D object detection is a central task for applications such as autonomous driving, in which the system needs to localize and classify surrounding traffic agents, even in the presence of adverse weather. In this paper, we address the problem…

Computer Vision and Pattern Recognition · Computer Science 2022-06-07 Martin Hahner , Christos Sakaridis , Mario Bijelic , Felix Heide , Fisher Yu , Dengxin Dai , Luc Van Gool

High-resolution point clouds~(HRPCD) anomaly detection~(AD) plays a critical role in precision machining and high-end equipment manufacturing. Despite considerable 3D-AD methods that have been proposed recently, they still cannot meet the…

Computer Vision and Pattern Recognition · Computer Science 2024-12-19 Hongze Zhu , Guoyang Xie , Chengbin Hou , Tao Dai , Can Gao , Jinbao Wang , Linlin Shen

3D LiDAR point cloud data is crucial for scene perception in computer vision, robotics, and autonomous driving. Geometric and semantic scene understanding, involving 3D point clouds, is essential for advancing autonomous driving…

Computer Vision and Pattern Recognition · Computer Science 2024-11-04 Li Li

High-definition 3D city maps enable city planning and change detection, which is essential for municipal compliance, map maintenance, and asset monitoring, including both built structures and urban greenery. Conventional Digital Surface…

Computer Vision and Pattern Recognition · Computer Science 2026-02-11 Hezam Albagami , Haitian Wang , Xinyu Wang , Muhammad Ibrahim , Zainy M. Malakan , Abdullah M. Alqamdi , Mohammed H. Alghamdi , Ajmal Mian

In recent years, the fusion of camera data with LiDAR measurements has emerged as a powerful approach to enhance spatial understanding. This study introduces a novel, hardware-agnostic methodology that generates colourised point clouds from…

Computer Vision and Pattern Recognition · Computer Science 2025-10-01 Pasindu Ranasinghe , Dibyayan Patra , Bikram Banerjee , Simit Raval

LiDAR-based 3D object detection is a fundamental task in the field of autonomous driving. This paper explores the unique advantage of Frequency Modulated Continuous Wave (FMCW) LiDAR in autonomous perception. Given a single frame FMCW point…

Computer Vision and Pattern Recognition · Computer Science 2025-04-09 Yining Shi , Kun Jiang , Xin Zhao , Kangan Qian , Chuchu Xie , Tuopu Wen , Mengmeng Yang , Diange Yang

4D millimeter wave radars (4D radars) are new emerging sensors that provide point clouds of objects with both position and radial velocity measurements. Compared to LiDARs, they are more affordable and reliable sensors for robots'…

Robotics · Computer Science 2025-12-18 Xingyi Li , Han Zhang , Ziliang Wang , Yukai Yang , Weidong Chen

Current LiDAR odometry, mapping and localization methods leverage point-wise representations of 3D scenes and achieve high accuracy in autonomous driving tasks. However, the space-inefficiency of methods that use point-wise representations…

Computer Vision and Pattern Recognition · Computer Science 2023-04-28 Chao Xia , Chenfeng Xu , Patrick Rim , Mingyu Ding , Nanning Zheng , Kurt Keutzer , Masayoshi Tomizuka , Wei Zhan

This work addresses the challenging task of LiDAR-based 3D object detection in foggy weather. Collecting and annotating data in such a scenario is very time, labor and cost intensive. In this paper, we tackle this problem by simulating…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Martin Hahner , Christos Sakaridis , Dengxin Dai , Luc Van Gool

The surface quality inspection of manufacturing parts based on 3D point cloud data has attracted increasing attention in recent years. The reason is that the 3D point cloud can capture the entire surface of manufacturing parts, unlike the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-12 Xuanming Cao , Chengyu Tao , Juan Du

Real-time 3D object detection from point clouds is essential for dynamic scene understanding in applications such as augmented reality, robotics and navigation. We introduce a novel Spatial-prioritized and Rank-aware 3D object detection…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 Chenyu Zhao , Xianwei Zheng , Zimin Xia , Linwei Yue , Nan Xue

Point clouds or depth images captured by current RGB-D cameras often suffer from low resolution, rendering them insufficient for applications such as 3D reconstruction and robots. Existing point cloud super-resolution (PCSR) methods are…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Zheng Fang , Ke Ye , Yaofang Liu , Gongzhe Li , Xianhong Zhao , Jialong Li , Ruxin Wang , Yuchen Zhang , Xiangyang Ji , Qilin Sun

We present TransLPC, a novel detection model for large point clouds that is based on a transformer architecture. While object detection with transformers has been an active field of research, it has proved difficult to apply such models to…

Computer Vision and Pattern Recognition · Computer Science 2022-10-03 Felicia Ruppel , Florian Faion , Claudius Gläser , Klaus Dietmayer

Generating 3D point cloud (PC) data from noisy sonar measurements is a problem that has potential applications for bathymetry mapping, artificial object inspection, mapping of aquatic plants and fauna as well as underwater navigation and…

Computer Vision and Pattern Recognition · Computer Science 2022-10-20 Andres Pulido , Ruoyao Qin , Antonio Diaz , Andrew Ortega , Peter Ifju , Jaejeong Shin

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…

Computer Vision and Pattern Recognition · Computer Science 2021-10-19 Benedikt Mersch , Xieyuanli Chen , Jens Behley , Cyrill Stachniss

An automated vehicle operating in an urban environment must be able to perceive and recognise object/obstacles in a three-dimensional world while navigating in a constantly changing environment. In order to plan and execute accurate…

Computer Vision and Pattern Recognition · Computer Science 2020-07-13 Julie Stephany Berrio , Mao Shan , Stewart Worrall , Eduardo Nebot