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Addressing Lidar Panoptic Segmentation (LPS ) is crucial for safe deployment of autonomous vehicles. LPS aims to recognize and segment lidar points w.r.t. a pre-defined vocabulary of semantic classes, including thing classes of countable…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Anirudh S Chakravarthy , Meghana Reddy Ganesina , Peiyun Hu , Laura Leal-Taixe , Shu Kong , Deva Ramanan , Aljosa Osep

Despite its importance, unsupervised domain adaptation (UDA) on LiDAR semantic segmentation is a task that has not received much attention from the research community. Only recently, a completion-based 3D method has been proposed to tackle…

Computer Vision and Pattern Recognition · Computer Science 2022-05-24 Eojindl Yi , Juyoung Yang , Junmo Kim

In the field of SLAM (Simultaneous Localization And Mapping) for robot navigation, mapping the environment is an important task. In this regard the Lidar sensor can produce near accurate 3D map of the environment in the format of point…

Computer Vision and Pattern Recognition · Computer Science 2020-09-15 Aritra Mukherjee , Sourya Dipta Das , Jasorsi Ghosh , Ananda S. Chowdhury , Sanjoy Kumar Saha

Recently, there has been a panoptic segmentation task combining semantic and instance segmentation, in which the goal is to classify each pixel with the corresponding instance ID. In this work, we propose a solution to tackle the panoptic…

Computer Vision and Pattern Recognition · Computer Science 2021-07-13 Shuo-En Chang , Yi-Cheng Yang , En-Ting Lin , Pei-Yung Hsiao , Li-Chen Fu

Integrating LiDAR and camera information in the bird's eye view (BEV) representation has demonstrated its effectiveness in 3D object detection. However, because of the fundamental disparity in geometric accuracy between these sensors,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-03 Guowen Zhang , Chenhang He , Liyi Chen , Lei Zhang

Adverse weather conditions significantly degrade the performance of LiDAR point cloud semantic segmentation networks by introducing large distribution shifts. Existing augmentation-based methods attempt to enhance robustness by simulating…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Wangkai Li , Zhaoyang Li , Yuwen Pan , Rui Sun , Yujia Chen , Tianzhu Zhang

Semantic segmentation is the task of assigning a class-label to each pixel in an image. We propose a region-based semantic segmentation framework which handles both full and weak supervision, and addresses three common problems: (1) Objects…

Computer Vision and Pattern Recognition · Computer Science 2018-11-21 Holger Caesar , Jasper Uijlings , Vittorio Ferrari

Lidars and cameras are critical sensors that provide complementary information for 3D detection in autonomous driving. While most prevalent methods progressively downscale the 3D point clouds and camera images and then fuse the high-level…

Computer Vision and Pattern Recognition · Computer Science 2023-09-22 Zixuan Yin , Han Sun , Ningzhong Liu , Huiyu Zhou , Jiaquan Shen

Integrating LiDAR and Camera information into Bird's-Eye-View (BEV) has become an essential topic for 3D object detection in autonomous driving. Existing methods mostly adopt an independent dual-branch framework to generate LiDAR and camera…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Hongxiang Cai , Zeyuan Zhang , Zhenyu Zhou , Ziyin Li , Wenbo Ding , Jiuhua Zhao

4D panoptic LiDAR segmentation is essential for scene understanding in autonomous driving and robotics, combining semantic and instance segmentation with temporal consistency. Current methods, like 4D-PLS and 4D-STOP, use a…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Nirit Alkalay , Roy Orfaig , Ben-Zion Bobrovsky

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…

Panoptic segmentation is a scene parsing task which unifies semantic segmentation and instance segmentation into one single task. However, the current state-of-the-art studies did not take too much concern on inference time. In this work,…

Computer Vision and Pattern Recognition · Computer Science 2021-07-14 Chia-Yuan Chang , Shuo-En Chang , Pei-Yung Hsiao , Li-Chen Fu

Image segmentation and depth estimation are crucial tasks in computer vision, especially in autonomous driving scenarios. Although these tasks are typically addressed separately, we propose an innovative approach to combine them in our…

Computer Vision and Pattern Recognition · Computer Science 2023-08-25 Jia-Quan Yu , Soo-Chang Pei

We propose LiRaFusion to tackle LiDAR-radar fusion for 3D object detection to fill the performance gap of existing LiDAR-radar detectors. To improve the feature extraction capabilities from these two modalities, we design an early fusion…

Robotics · Computer Science 2024-02-20 Jingyu Song , Lingjun Zhao , Katherine A. Skinner

LiDAR semantic segmentation plays a pivotal role in 3D scene understanding for edge applications such as autonomous driving. However, significant challenges remain for real-world deployments, particularly for on-device post-deployment…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Ivannia Gomez Moreno , Yi Yao , Ye Tian , Xiaofan Yu , Flavio Ponzina , Michael Sullivan , Jingyi Zhang , Mingyu Yang , Hun Seok Kim , Tajana Rosing

The ability to accurately detect and localize objects is recognized as being the most important for the perception of self-driving cars. From 2D to 3D object detection, the most difficult is to determine the distance from the ego-vehicle to…

Computer Vision and Pattern Recognition · Computer Science 2021-05-31 Nguyen Anh Minh Mai , Pierre Duthon , Louahdi Khoudour , Alain Crouzil , Sergio A. Velastin

In this work, we propose a single deep neural network for panoptic segmentation, for which the goal is to provide each individual pixel of an input image with a class label, as in semantic segmentation, as well as a unique identifier for…

Computer Vision and Pattern Recognition · Computer Science 2019-02-08 Daan de Geus , Panagiotis Meletis , Gijs Dubbelman

Semantic scene understanding, including the perception and classification of moving agents, is essential to enabling safe and robust driving behaviours of autonomous vehicles. Cameras and LiDARs are commonly used for semantic scene…

Computer Vision and Pattern Recognition · Computer Science 2025-07-10 Matthias Zeller , Daniel Casado Herraez , Bengisu Ayan , Jens Behley , Michael Heidingsfeld , Cyrill Stachniss

LiDAR semantic segmentation plays a crucial role in enabling autonomous driving and robots to understand their surroundings accurately and robustly. A multitude of methods exist within this domain, including point-based, range-image-based,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Rong Li , ShiJie Li , Xieyuanli Chen , Teli Ma , Juergen Gall , Junwei Liang

Within a perception framework for autonomous mobile and robotic systems, semantic analysis of 3D point clouds typically generated by LiDARs is key to numerous applications, such as object detection and recognition, and scene reconstruction.…

Robotics · Computer Science 2024-10-14 Samir Abou Haidar , Alexandre Chariot , Mehdi Darouich , Cyril Joly , Jean-Emmanuel Deschaud