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LiDAR sensor is essential to the perception system in autonomous vehicles and intelligent robots. To fulfill the real-time requirements in real-world applications, it is necessary to efficiently segment the LiDAR scans. Most of previous…

Computer Vision and Pattern Recognition · Computer Science 2022-09-16 Song Wang , Jianke Zhu , Ruixiang Zhang

Recent advances have demonstrated that Language Vision Models (LVMs) surpass the existing State-of-the-Art (SOTA) in two-dimensional (2D) computer vision tasks, motivating attempts to apply LVMs to three-dimensional (3D) data. While LVMs…

Computer Vision and Pattern Recognition · Computer Science 2025-09-29 June Moh Goo , Zichao Zeng , Jan Boehm

Vision Transformers (ViTs) are essential as foundation backbones in establishing the visual comprehension capabilities of Multimodal Large Language Models (MLLMs). Although most ViTs achieve impressive performance through image-text…

Computer Vision and Pattern Recognition · Computer Science 2025-07-03 Weijie Yin , Dingkang Yang , Hongyuan Dong , Zijian Kang , Jiacong Wang , Xiao Liang , Chao Feng , Jiao Ran

Semantic map construction under bird's-eye view (BEV) plays an essential role in autonomous driving. In contrast to camera image, LiDAR provides the accurate 3D observations to project the captured 3D features onto BEV space inherently.…

Computer Vision and Pattern Recognition · Computer Science 2023-06-06 Song Wang , Wentong Li , Wenyu Liu , Xiaolu Liu , Jianke Zhu

Existing LiDAR-based 3D object detection methods for autonomous driving scenarios mainly adopt the training-from-scratch paradigm. Unfortunately, this paradigm heavily relies on large-scale labeled data, whose collection can be expensive…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Zhiwei Lin , Yongtao Wang , Shengxiang Qi , Nan Dong , Ming-Hsuan Yang

While modern visual recognition systems have made significant advancements, many continue to struggle with the open problem of learning from few exemplars. This paper focuses on the task of object detection in the setting where object…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Phi Vu Tran

We explore the capability of plain Vision Transformers (ViTs) for semantic segmentation and propose the SegVit. Previous ViT-based segmentation networks usually learn a pixel-level representation from the output of the ViT. Differently, we…

Computer Vision and Pattern Recognition · Computer Science 2022-12-13 Bowen Zhang , Zhi Tian , Quan Tang , Xiangxiang Chu , Xiaolin Wei , Chunhua Shen , Yifan Liu

Semantic segmentation in bird's eye view (BEV) plays a crucial role in autonomous driving. Previous methods usually follow an end-to-end pipeline, directly predicting the BEV segmentation map from monocular RGB inputs. However, the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Tianhao Zhao , Yongcan Chen , Yu Wu , Tianyang Liu , Bo Du , Peilun Xiao , Shi Qiu , Hongda Yang , Guozhen Li , Yi Yang , Yutian Lin

Bird's Eye View (BEV) semantic maps have recently garnered a lot of attention as a useful representation of the environment to tackle assisted and autonomous driving tasks. However, most of the existing work focuses on the fully supervised…

Computer Vision and Pattern Recognition · Computer Science 2025-04-11 Henrique Piñeiro Monteagudo , Leonardo Taccari , Aurel Pjetri , Francesco Sambo , Samuele Salti

Whilst the availability of 3D LiDAR point cloud data has significantly grown in recent years, annotation remains expensive and time-consuming, leading to a demand for semi-supervised semantic segmentation methods with application domains…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Li Li , Hubert P. H. Shum , Toby P. Breckon

3D object detection using LiDAR data is an indispensable component for autonomous driving systems. Yet, only a few LiDAR-based 3D object detection methods leverage segmentation information to further guide the detection process. In this…

Computer Vision and Pattern Recognition · Computer Science 2022-03-07 Hamidreza Fazlali , Yixuan Xu , Yuan Ren , Bingbing Liu

Continual learning with vision-language models like CLIP offers a pathway toward scalable machine learning systems by leveraging its transferable representations. Existing CLIP-based methods adapt the pre-trained image encoder by adding…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Mao-Lin Luo , Zi-Hao Zhou , Tong Wei , Min-Ling Zhang

In recent studies, numerous previous works emphasize the importance of semantic segmentation of LiDAR data as a critical component to the development of driver-assistance systems and autonomous vehicles. However, many state-of-the-art…

The performance of object detection methods based on LiDAR information is heavily impacted by the availability of training data, usually limited to certain laser devices. As a result, the use of synthetic data is becoming popular when…

Computer Vision and Pattern Recognition · Computer Science 2021-04-23 Alejandro Barrera , Jorge Beltrán , Carlos Guindel , Jose Antonio Iglesias , Fernando García

This paper presents the Large Vision Diffusion Transformer (LaVin-DiT), a scalable and unified foundation model designed to tackle over 20 computer vision tasks in a generative framework. Unlike existing large vision models directly adapted…

Computer Vision and Pattern Recognition · Computer Science 2025-03-07 Zhaoqing Wang , Xiaobo Xia , Runnan Chen , Dongdong Yu , Changhu Wang , Mingming Gong , Tongliang Liu

While LiDAR data acquisition is easy, labeling for semantic segmentation remains highly time consuming and must therefore be done selectively. Active learning (AL) provides a solution that can iteratively and intelligently label a dataset…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Ozan Unal , Dengxin Dai , Ali Tamer Unal , Luc Van Gool

Semantic Bird's Eye View (BEV) maps offer a rich representation with strong occlusion reasoning for various decision making tasks in autonomous driving. However, most BEV mapping approaches employ a fully supervised learning paradigm that…

Computer Vision and Pattern Recognition · Computer Science 2024-05-30 Nikhil Gosala , Kürsat Petek , B Ravi Kiran , Senthil Yogamani , Paulo Drews-Jr , Wolfram Burgard , Abhinav Valada

We address the problem of unsupervised semantic segmentation of outdoor LiDAR point clouds in diverse traffic scenarios. The key idea is to leverage the spatiotemporal nature of a dynamic point cloud sequence and introduce drastically…

Computer Vision and Pattern Recognition · Computer Science 2023-08-25 Xiao Li , Pan He , Aotian Wu , Sanjay Ranka , Anand Rangarajan

Accurate 3D bird's-eye view (BEV) object detection is essential for autonomous driving, and depends strongly on effective multimodal representations from complementary sensors such as cameras and LiDAR. Multimodal masked autoencoders have…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Prabuddhi Wariyapperuma , Rajitha de Silva , Marc Hanheide , Thomas Bohné , Leonardo Guevara

This paper presents a semi-supervised learning framework for a customized semantic segmentation task using multiview image streams. A key challenge of the customized task lies in the limited accessibility of the labeled data due to the…

Computer Vision and Pattern Recognition · Computer Science 2018-12-06 Yuan Yao , Hyun Soo Park