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Efficient data utilization is crucial for advancing 3D scene understanding in autonomous driving, where reliance on heavily human-annotated LiDAR point clouds challenges fully supervised methods. Addressing this, our study extends into…

Computer Vision and Pattern Recognition · Computer Science 2025-12-08 Lingdong Kong , Xiang Xu , Jiawei Ren , Wenwei Zhang , Liang Pan , Kai Chen , Wei Tsang Ooi , Ziwei Liu

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…

We tackle the challenging task of unsupervised object localization in this work. Recently, transformers trained with self-supervised learning have been shown to exhibit object localization properties without being trained for this task. In…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Sai Saketh Rambhatla , Ishan Misra , Rama Chellappa , Abhinav Shrivastava

In this paper, we study the problem of unsupervised object detection from 3D point clouds in self-driving scenes. We present a simple yet effective method that exploits (i) point clustering in near-range areas where the point clouds are…

Computer Vision and Pattern Recognition · Computer Science 2023-11-06 Lunjun Zhang , Anqi Joyce Yang , Yuwen Xiong , Sergio Casas , Bin Yang , Mengye Ren , Raquel Urtasun

Audio-Visual Segmentation (AVS) aims to identify, at the pixel level, the object in a visual scene that produces a given sound. Current AVS methods rely on costly fine-grained annotations of mask-audio pairs, making them impractical for…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Swapnil Bhosale , Haosen Yang , Diptesh Kanojia , Jiangkang Deng , Xiatian Zhu

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

Embodied agents must detect and localize objects of interest, e.g. traffic participants for self-driving cars. Supervision in the form of bounding boxes for this task is extremely expensive. As such, prior work has looked at unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2024-08-01 Yihong Sun , Bharath Hariharan

Assigning consistent temporal identifiers to multiple moving objects in a video sequence is a challenging problem. A solution to that problem would have immediate ramifications in multiple object tracking and segmentation problems. We…

Computer Vision and Pattern Recognition · Computer Science 2021-11-08 Abubakar Siddique , Reza Jalil Mozhdehi , Henry Medeiros

Multi-object tracking (MOT) is the task of estimating the state trajectories of an unknown and time-varying number of objects over a certain time window. Several algorithms have been proposed to tackle the multi-object smoothing task, where…

Computer Vision and Pattern Recognition · Computer Science 2024-01-01 Juliano Pinto , Georg Hess , Yuxuan Xia , Henk Wymeersch , Lennart Svensson

Unsupervised 3D object detection serves as an important solution for offline 3D object annotation. However, due to the data sparsity and limited views, the clustering-based label fitting in unsupervised object detection often generates…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Qiming Xia , Wenkai Lin , Haoen Xiang , Xun Huang , Siheng Chen , Zhen Dong , Cheng Wang , Chenglu Wen

Data-driven approaches to assist operating room (OR) workflow analysis depend on large curated datasets that are time consuming and expensive to collect. On the other hand, we see a recent paradigm shift from supervised learning to…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Muhammad Abdullah Jamal , Omid Mohareri

Occluded and long-range objects are ubiquitous and challenging for 3D object detection. Point cloud sequence data provide unique opportunities to improve such cases, as an occluded or distant object can be observed from different viewpoints…

Computer Vision and Pattern Recognition · Computer Science 2023-06-07 Yingwei Li , Charles R. Qi , Yin Zhou , Chenxi Liu , Dragomir Anguelov

This work investigates learning pixel-wise semantic image segmentation in urban scenes without any manual annotation, just from the raw non-curated data collected by cars which, equipped with cameras and LiDAR sensors, drive around a city.…

Computer Vision and Pattern Recognition · Computer Science 2024-02-22 Antonin Vobecky , David Hurych , Oriane Siméoni , Spyros Gidaris , Andrei Bursuc , Patrick Pérez , Josef Sivic

Accurate static structure reconstruction and segmentation of non-stationary objects is of vital importance for autonomous navigation applications. These applications assume a LiDAR scan to consist of only static structures. In the real…

Robotics · Computer Science 2023-10-17 Prashant Kumar , Dhruv Makwana , Onkar Susladkar , Anurag Mittal , Prem Kumar Kalra

Multi-Object Tracking (MOT) has gained extensive attention in recent years due to its potential applications in traffic and pedestrian detection. We note that tracking by detection may suffer from errors generated by noise detectors, such…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 ZongTan Li

Visual localization and mapping is a crucial capability to address many challenges in mobile robotics. It constitutes a robust, accurate and cost-effective approach for local and global pose estimation within prior maps. Yet, in highly…

Computer Vision and Pattern Recognition · Computer Science 2018-07-11 Guoxiang Zhou , Berta Bescos , Marcin Dymczyk , Mark Pfeiffer , José Neira , Roland Siegwart

In this paper, we study a new representation-learning task, which we termed as disassembling object representations. Given an image featuring multiple objects, the goal of disassembling is to acquire a latent representation, of which each…

Computer Vision and Pattern Recognition · Computer Science 2020-04-06 Zunlei Feng , Xinchao Wang , Yongming He , Yike Yuan , Xin Gao , Mingli Song

Video object segmentation (VOS) aims at segmenting a particular object throughout the entire video clip sequence. The state-of-the-art VOS methods have achieved excellent performance (e.g., 90+% J&F) on existing datasets. However, since the…

Computer Vision and Pattern Recognition · Computer Science 2023-10-24 Henghui Ding , Chang Liu , Shuting He , Xudong Jiang , Philip H. S. Torr , Song Bai

For the SLAM system in robotics and autonomous driving, the accuracy of front-end odometry and back-end loop-closure detection determine the whole intelligent system performance. But the LiDAR-SLAM could be disturbed by current scene moving…

Robotics · Computer Science 2023-07-19 Qipeng Li , Yuan Zhuang , Yiwen Chen , Jianzhu Huai , Miao Li , Tianbing Ma , Yufei Tang , Xinlian Liang

Unsupervised domain adaptation (UDA) has been a potent technique to handle the lack of annotations in the target domain, particularly in semantic segmentation task. This study introduces a different UDA scenarios where the target domain…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Fei Pan , Xu Yin , Seokju Lee , Axi Niu , Sungeui Yoon , In So Kweon