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Semantic segmentation of 3D LiDAR data plays a pivotal role in autonomous driving. Traditional approaches rely on extensive annotated data for point cloud analysis, incurring high costs and time investments. In contrast, realworld image…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Jialiang Kang , Jiawen Wang , Dingsheng Luo

This article presents a complete semantic scene understanding workflow using only a single 2D lidar. This fills the gap in 2D lidar semantic segmentation, thereby enabling the rethinking and enhancement of existing 2D lidar-based algorithms…

Robotics · Computer Science 2026-01-27 Zhanteng Xie , Yipeng Pan , Yinqiang Zhang , Jia Pan , Philip Dames

We present a boundary-aware domain adaptation model for LiDAR scan full-scene semantic segmentation (LiDARNet). Our model can extract both the domain private features and the domain shared features with a two-branch structure. We embedded…

Computer Vision and Pattern Recognition · Computer Science 2021-04-27 Peng Jiang , Srikanth Saripalli

We introduce LiDAR-UDA, a novel two-stage self-training-based Unsupervised Domain Adaptation (UDA) method for LiDAR segmentation. Existing self-training methods use a model trained on labeled source data to generate pseudo labels for target…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Amirreza Shaban , JoonHo Lee , Sanghun Jung , Xiangyun Meng , Byron Boots

Segmentation of lidar data is a task that provides rich, point-wise information about the environment of robots or autonomous vehicles. Currently best performing neural networks for lidar segmentation are fine-tuned to specific datasets.…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Frederik Hasecke , Pascal Colling , Anton Kummert

Semantic segmentation on LiDAR imaging is increasingly gaining attention, as it can provide useful knowledge for perception systems and potential for autonomous driving. However, collecting and labeling real LiDAR data is an expensive and…

Computer Vision and Pattern Recognition · Computer Science 2025-02-03 Javier Montalvo , Pablo Carballeira , Álvaro García-Martín

Traditional segmentation networks approach anatomical structures as standalone elements, overlooking the intrinsic hierarchical connections among them. This study introduces Softmax for Arbitrary Label Trees (SALT), a novel approach…

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

Weakly supervised point cloud semantic segmentation methods that require 1\% or fewer labels, hoping to realize almost the same performance as fully supervised approaches, which recently, have attracted extensive research attention. A…

Computer Vision and Pattern Recognition · Computer Science 2022-09-19 Tianfang Sun , Zhizhong Zhang , Xin Tan , Yanyun Qu , Yuan Xie , Lizhuang Ma

Recently, the philosophy of visual saliency and attention has started to gain popularity in the robotics community. Therefore, this paper aims to mimic this mechanism in SLAM framework by using saliency prediction model. Comparing with…

Robotics · Computer Science 2020-12-23 Ke Wang , Sai Ma , Junlan Chen , Jianbo Lu

Point cloud maps generated via LiDAR sensors using extensive remotely sensed data are commonly used by autonomous vehicles and robots for localization and navigation. However, dynamic objects contained in point cloud maps not only downgrade…

Robotics · Computer Science 2024-02-29 Feiya Li , Chunyun Fu , Dongye Sun , Jian Li , Jianwen Wang

LiDAR representation learning has emerged as a promising approach to reducing reliance on costly and labor-intensive human annotations. While existing methods primarily focus on spatial alignment between LiDAR and camera sensors, they often…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Xiang Xu , Lingdong Kong , Hui Shuai , Wenwei Zhang , Liang Pan , Kai Chen , Ziwei Liu , Qingshan Liu

Real-time six degree-of-freedom pose estimation with ground vehicles represents a relevant and well studied topic in robotics, due to its many applications, such as autonomous driving and 3D mapping. Although some systems exist already,…

Robotics · Computer Science 2021-09-14 Matteo Frosi , Matteo Matteucci

In some of object recognition problems, labeled data may not be available for all categories. Zero-shot learning utilizes auxiliary information (also called signatures) describing each category in order to find a classifier that can…

Computer Vision and Pattern Recognition · Computer Science 2016-06-01 Seyed Mohsen Shojaee , Mahdieh Soleymani Baghshah

Traditional 3D segmentation methods can only recognize a fixed range of classes that appear in the training set, which limits their application in real-world scenarios due to the lack of generalization ability. Large-scale visual-language…

Computer Vision and Pattern Recognition · Computer Science 2023-12-13 Yuanbin Wang , Shaofei Huang , Yulu Gao , Zhen Wang , Rui Wang , Kehua Sheng , Bo Zhang , Si Liu

Combining multiple object detection datasets offers a path to improved generalisation but is hindered by inconsistencies in class semantics and bounding box annotations. Some methods to address this assume shared label taxonomies and…

Computer Vision and Pattern Recognition · Computer Science 2025-06-09 Mikhail Kennerley , Angelica Aviles-Rivero , Carola-Bibiane Schönlieb , Robby T. Tan

To address the annotation burden in LiDAR-based 3D object detection, active learning (AL) methods offer a promising solution. However, traditional active learning approaches solely rely on a small amount of labeled data to train an initial…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Zengran Wang , Yanan Zhang , Jiaxin Chen , Di Huang

Domain adaptation of visual detectors is a critical challenge, yet existing methods have overlooked pixel appearance transformations, focusing instead on bootstrapping and/or domain confusion losses. We propose a Semantic Pixel-Level…

Computer Vision and Pattern Recognition · Computer Science 2018-12-04 Eric Tzeng , Kaylee Burns , Kate Saenko , Trevor Darrell

LiDAR-based SLAM system is admittedly more accurate and stable than others, while its loop closure detection is still an open issue. With the development of 3D semantic segmentation for point cloud, semantic information can be obtained…

Robotics · Computer Science 2021-07-02 Lin Li , Xin Kong , Xiangrui Zhao , Wanlong Li , Feng Wen , Hongbo Zhang , Yong Liu

We explore the task of zero-shot semantic segmentation of 3D shapes by using large-scale off-the-shelf 2D image recognition models. Surprisingly, we find that modern zero-shot 2D object detectors are better suited for this task than…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Ahmed Abdelreheem , Ivan Skorokhodov , Maks Ovsjanikov , Peter Wonka