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A crucial task in scene understanding is 3D object detection, which aims to detect and localize the 3D bounding boxes of objects belonging to specific classes. Existing 3D object detectors heavily rely on annotated 3D bounding boxes during…

Computer Vision and Pattern Recognition · Computer Science 2020-07-29 Zengyi Qin , Jinglu Wang , Yan Lu

Object classification using LiDAR 3D point cloud data is critical for modern applications such as autonomous driving. However, labeling point cloud data is labor-intensive as it requires human annotators to visualize and inspect the 3D data…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Ziwei Wang , Reza Arablouei , Jiajun Liu , Paulo Borges , Greg Bishop-Hurley , Nicholas Heaney

Place recognition is an important capability for autonomously navigating vehicles operating in complex environments and under changing conditions. It is a key component for tasks such as loop closing in SLAM or global localization. In this…

Robotics · Computer Science 2023-04-21 Junyi Ma , Jun Zhang , Jintao Xu , Rui Ai , Weihao Gu , Xieyuanli Chen

The dynamic and heterogeneous nature of agricultural fields presents significant challenges for object detection and localization, particularly for autonomous mobile robots that are tasked with surveying previously unseen unstructured…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Dimitrios Chatziparaschis , Elia Scudiero , Brent Sams , Konstantinos Karydis

LiDAR sensors are a key modality for 3D perception, yet they are typically designed independently of downstream tasks such as point cloud registration. Conventional registration operates on pre-acquired datasets with fixed LiDAR…

Computer Vision and Pattern Recognition · Computer Science 2026-02-12 Siddhant Katyan , Marc-André Gardner , Jean-François Lalonde

Training deep object detectors requires significant amount of human-annotated images with accurate object labels and bounding box coordinates, which are extremely expensive to acquire. Noisy annotations are much more easily accessible, but…

Computer Vision and Pattern Recognition · Computer Science 2020-03-04 Junnan Li , Caiming Xiong , Richard Socher , Steven Hoi

In a point cloud sequence, 3D object tracking aims to predict the location and orientation of an object in the current search point cloud given a template point cloud. Motivated by the success of transformers, we propose Point Tracking…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Changqing Zhou , Zhipeng Luo , Yueru Luo , Tianrui Liu , Liang Pan , Zhongang Cai , Haiyu Zhao , Shijian Lu

Active learning, a label-efficient paradigm, empowers models to interactively query an oracle for labeling new data. In the realm of LiDAR semantic segmentation, the challenges stem from the sheer volume of point clouds, rendering…

Computer Vision and Pattern Recognition · Computer Science 2023-11-01 Binhui Xie , Shuang Li , Qingju Guo , Chi Harold Liu , Xinjing Cheng

Masked autoencoding has become a successful pretraining paradigm for Transformer models for text, images, and, recently, point clouds. Raw automotive datasets are suitable candidates for self-supervised pre-training as they generally are…

Computer Vision and Pattern Recognition · Computer Science 2023-03-10 Georg Hess , Johan Jaxing , Elias Svensson , David Hagerman , Christoffer Petersson , Lennart Svensson

Perceiving pedestrians in highly crowded urban environments is a difficult long-tail problem for learning-based autonomous perception. Speeding up 3D ground truth generation for such challenging scenes is performance-critical yet very…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Shichao Li , Peiliang Li , Qing Lian , Peng Yun , Xiaozhi Chen

We propose FutrTrack, a modular camera-LiDAR multi-object tracking framework that builds on existing 3D detectors by introducing a transformer-based smoother and a fusion-driven tracker. Inspired by query-based tracking frameworks,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Martha Teiko Teye , Ori Maoz , Matthias Rottmann

LiDAR and camera are two important sensors for 3D object detection in autonomous driving. Despite the increasing popularity of sensor fusion in this field, the robustness against inferior image conditions, e.g., bad illumination and sensor…

Computer Vision and Pattern Recognition · Computer Science 2022-03-23 Xuyang Bai , Zeyu Hu , Xinge Zhu , Qingqiu Huang , Yilun Chen , Hongbo Fu , Chiew-Lan Tai

Deep-learning-based autonomous driving (AD) perception introduces a promising picture for safe and environment-friendly transportation. However, the over-reliance on real labeled data in LiDAR perception limits the scale of on-road…

Computer Vision and Pattern Recognition · Computer Science 2026-03-02 Runjian Chen , Wenqi Shao , Bo Zhang , Shaoshuai Shi , Li Jiang , Ping Luo

3D object trackers usually require training on large amounts of annotated data that is expensive and time-consuming to collect. Instead, we propose leveraging vast unlabeled datasets by self-supervised metric learning of 3D object trackers,…

Computer Vision and Pattern Recognition · Computer Science 2020-08-20 Jianren Wang , Siddharth Ancha , Yi-Ting Chen , David Held

We introduce Multi-Source 3D (MS3D), a new self-training pipeline for unsupervised domain adaptation in 3D object detection. Despite the remarkable accuracy of 3D detectors, they often overfit to specific domain biases, leading to…

Computer Vision and Pattern Recognition · Computer Science 2023-05-10 Darren Tsai , Julie Stephany Berrio , Mao Shan , Eduardo Nebot , Stewart Worrall

Data collection for autonomous driving is rapidly accelerating, but manual annotation, especially for 3D labels, remains a major bottleneck due to its high cost and labor intensity. Autolabeling has emerged as a scalable alternative,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Levente Tempfli , Esteban Rivera , Markus Lienkamp

Effectively preserving and encoding structure features from objects in irregular and sparse LiDAR points is a key challenge to 3D object detection on point cloud. Recently, Transformer has demonstrated promising performance on many 2D and…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Xiaoyu Feng , Heming Du , Yueqi Duan , Yongpan Liu , Hehe Fan

Autonomous driving has achieved rapid development over the last few decades, including the machine perception as an important issue of it. Although object detection based on conventional cameras has achieved remarkable results in 2D/3D,…

Robotics · Computer Science 2021-07-20 Rui Yang , Zhi Yan , Tao Yang , Yassine Ruichek

Object segmentation in three-dimensional (3-D) point clouds is a critical task for robots capable of 3-D perception. Despite the impressive performance of deep learning-based approaches on object segmentation in 2-D images, deep learning…

Image and Video Processing · Electrical Eng. & Systems 2019-10-31 Brian H. Wang , Wei-Lun Chao , Yan Wang , Bharath Hariharan , Kilian Q. Weinberger , Mark Campbell

We propose a new method for fine registering multiple point clouds simultaneously. The approach is characterized by being dense, therefore point clouds are not reduced to pre-selected features in advance. Furthermore, the approach is robust…

Robotics · Computer Science 2024-06-18 David Skuddis , Norbert Haala