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Semantic segmentation plays a crucial role in enabling machines to understand and interpret visual scenes at a pixel level. While traditional segmentation methods have achieved remarkable success, their generalization to diverse scenes and…

Computer Vision and Pattern Recognition · Computer Science 2025-01-29 Philip Hughes , Larry Burns , Luke Adams

LiDAR scanning for surveying applications acquire measurements over wide areas and long distances, which produces large-scale 3D point clouds with significant local density variations. While existing 3D semantic segmentation models conduct…

Computer Vision and Pattern Recognition · Computer Science 2023-07-06 Ryan Faulkner , Luke Haub , Simon Ratcliffe , Ian Reid , Tat-Jun Chin

Semantic segmentation serves as a cornerstone of scene understanding in autonomous driving but continues to face significant challenges under complex conditions such as occlusion. Light field and LiDAR modalities provide complementary…

Computer Vision and Pattern Recognition · Computer Science 2026-04-16 Jie Luo , Yuxuan Jiang , Xin Jin , Mingyu Liu , Yihui Fan

LiDAR point cloud analysis is a core task for 3D computer vision, especially for autonomous driving. However, due to the severe sparsity and noise interference in the single sweep LiDAR point cloud, the accurate semantic segmentation is…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Xu Yan , Jiantao Gao , Jie Li , Ruimao Zhang , Zhen Li , Rui Huang , Shuguang Cui

LiDAR and camera are two modalities available for 3D semantic segmentation in autonomous driving. The popular LiDAR-only methods severely suffer from inferior segmentation on small and distant objects due to insufficient laser points, while…

Computer Vision and Pattern Recognition · Computer Science 2023-03-16 Jiale Li , Hang Dai , Hao Han , Yong Ding

Semantic segmentation of LiDAR point clouds is an important task in autonomous driving. However, training deep models via conventional supervised methods requires large datasets which are costly to label. It is critical to have…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Minghua Liu , Yin Zhou , Charles R. Qi , Boqing Gong , Hao Su , Dragomir Anguelov

LiDAR semantic segmentation is crucial for autonomous vehicles and mobile robots, requiring high accuracy and real-time processing, especially on resource-constrained embedded systems. Previous state-of-the-art methods often face a…

Computer Vision and Pattern Recognition · Computer Science 2025-10-09 Samir Abou Haidar , Alexandre Chariot , Mehdi Darouich , Cyril Joly , Jean-Emmanuel Deschaud

At the heart of all automated driving systems is the ability to sense the surroundings, e.g., through semantic segmentation of LiDAR sequences, which experienced a remarkable progress due to the release of large datasets such as…

Computer Vision and Pattern Recognition · Computer Science 2022-01-21 Kunyu Peng , Juncong Fei , Kailun Yang , Alina Roitberg , Jiaming Zhang , Frank Bieder , Philipp Heidenreich , Christoph Stiller , Rainer Stiefelhagen

With the rapid advances of autonomous driving, it becomes critical to equip its sensing system with more holistic 3D perception. However, existing works focus on parsing either the objects (e.g. cars and pedestrians) or scenes (e.g. trees…

Computer Vision and Pattern Recognition · Computer Science 2020-12-02 Fangzhou Hong , Hui Zhou , Xinge Zhu , Hongsheng Li , Ziwei Liu

Although LiDAR sensors are crucial for autonomous systems due to providing precise depth information, they struggle with capturing fine object details, especially at a distance, due to sparse and non-uniform data. Recent advances introduced…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Tiago Cortinhal , Idriss Gouigah , Eren Erdal Aksoy

This paper presents a fully unsupervised deep change detection approach for mobile robots with 3D LiDAR. In unstructured environments, it is infeasible to define a closed set of semantic classes. Instead, semantic segmentation is…

Robotics · Computer Science 2024-05-01 Alexander Krawciw , Jordy Sehn , Timothy D. Barfoot

Semantic segmentation of LiDAR data presents considerable challenges, particularly when dealing with diverse sensor types and configurations. However, incorporating semantic information can significantly enhance the accuracy and robustness…

Robotics · Computer Science 2025-09-26 Sven Ochs , Philip Schörner , Marc René Zofka , J. Marius Zöllner

Localization is an essential task for mobile autonomous robotic systems that want to use pre-existing maps or create new ones in the context of SLAM. Today, many robotic platforms are equipped with high-accuracy 3D LiDAR sensors, which…

Outdoor scene completion is a challenging issue in 3D scene understanding, which plays an important role in intelligent robotics and autonomous driving. Due to the sparsity of LiDAR acquisition, it is far more complex for 3D scene…

Computer Vision and Pattern Recognition · Computer Science 2021-09-24 Xuemeng Yang , Hao Zou , Xin Kong , Tianxin Huang , Yong Liu , Wanlong Li , Feng Wen , Hongbo Zhang

Roof-mounted spinning LiDAR sensors are widely used by autonomous vehicles. However, most semantic datasets and algorithms used for LiDAR sequence segmentation operate on $360^\circ$ frames, causing an acquisition latency incompatible with…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Romain Loiseau , Mathieu Aubry , Loïc Landrieu

Perception systems play a crucial role in autonomous driving, incorporating multiple sensors and corresponding computer vision algorithms. 3D LiDAR sensors are widely used to capture sparse point clouds of the vehicle's surroundings.…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Helin Cao , Sven Behnke

In the wake of Masked Image Modeling (MIM), a diverse range of plain, non-hierarchical Vision Transformer (ViT) models have been pre-trained with extensive datasets, offering new paradigms and significant potential for semantic…

Computer Vision and Pattern Recognition · Computer Science 2023-10-20 Yuanduo Hong , Jue Wang , Weichao Sun , Huihui Pan

In the rapidly evolving field of autonomous driving, precise segmentation of LiDAR data is crucial for understanding complex 3D environments. Traditional approaches often rely on disparate, standalone codebases, hindering unified…

Computer Vision and Pattern Recognition · Computer Science 2024-05-31 Jiahao Sun , Chunmei Qing , Xiang Xu , Lingdong Kong , Youquan Liu , Li Li , Chenming Zhu , Jingwei Zhang , Zeqi Xiao , Runnan Chen , Tai Wang , Wenwei Zhang , Kai Chen

The ability to detect and segment moving objects in a scene is essential for building consistent maps, making future state predictions, avoiding collisions, and planning. In this paper, we address the problem of moving object segmentation…

Semantic segmentation of LiDAR point clouds has been widely studied in recent years, with most existing methods focusing on tackling this task using a single scan of the environment. However, leveraging the temporal stream of observations…

Computer Vision and Pattern Recognition · Computer Science 2023-11-06 Enxu Li , Sergio Casas , Raquel Urtasun