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Moving object segmentation (MOS) provides a reliable solution for detecting traffic participants and thus is of great interest in the autonomous driving field. Dynamic capture is always critical in the MOS problem. Previous methods capture…

Computer Vision and Pattern Recognition · Computer Science 2024-01-31 Jintao Cheng , Kang Zeng , Zhuoxu Huang , Xiaoyu Tang , Jin Wu , Chengxi Zhang , Xieyuanli Chen , Rui Fan

Medical vision-language pre-training methods mainly leverage the correspondence between paired medical images and radiological reports. Although multi-view spatial images and temporal sequences of image-report pairs are available in…

Artificial Intelligence · Computer Science 2024-05-31 Jinxia Yang , Bing Su , Wayne Xin Zhao , Ji-Rong Wen

In autonomous driving, accurately distinguishing between static and moving objects is crucial for the autonomous driving system. When performing the motion object segmentation (MOS) task, effectively leveraging motion information from…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Xiaoyu Tang , Zeyu Chen , Jintao Cheng , Xieyuanli Chen , Jin Wu , Bohuan Xue

We present a novel target-based lidar-camera extrinsic calibration methodology that can be used for non-overlapping field of view (FOV) sensors. Contrary to previous work, our methodology overcomes the non-overlapping FOV challenge using a…

Robotics · Computer Science 2025-03-04 Nicholas Charron , Huaiyuan Weng , Steven L. Waslander , Sriram Narasimhan

Training deep models for LiDAR semantic segmentation is challenging due to the inherent sparsity of point clouds. Utilizing temporal data is a natural remedy against the sparsity problem as it makes the input signal denser. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Xiaopei Wu , Yuenan Hou , Xiaoshui Huang , Binbin Lin , Tong He , Xinge Zhu , Yuexin Ma , Boxi Wu , Haifeng Liu , Deng Cai , Wanli Ouyang

A comprehensive understanding of 3D scenes is essential for autonomous vehicles (AVs), and among various perception tasks, occupancy estimation plays a central role by providing a general representation of drivable and occupied space.…

Computer Vision and Pattern Recognition · Computer Science 2025-05-21 Ruihan Liu , Xiaoyi Wu , Xijun Chen , Liang Hu , Yunjiang Lou

This paper addresses the task of unsupervised video multi-object segmentation. Current approaches follow a two-stage paradigm: 1) detect object proposals using pre-trained Mask R-CNN, and 2) conduct generic feature matching for temporal…

Computer Vision and Pattern Recognition · Computer Science 2021-04-13 Tianfei Zhou , Jianwu Li , Xueyi Li , Ling Shao

Video object detection (VID) has been vigorously studied for years but almost all literature adopts a static accuracy-based evaluation, i.e., average precision (AP). From a robotic perspective, the importance of recall continuity and…

Computer Vision and Pattern Recognition · Computer Science 2020-03-05 Xingyu Chen , Zhengxing Wu , Junzhi Yu , Li Wen

Semantic segmentation and activity classification are key components to creating intelligent surgical systems able to understand and assist clinical workflow. In the Operating Room, semantic segmentation is at the core of creating robots…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Idris Hamoud , Alexandros Karargyris , Aidean Sharghi , Omid Mohareri , Nicolas Padoy

Multi-Task Learning (MTL) is designed to train multiple correlated tasks simultaneously, thereby enhancing the performance of individual tasks. Typically, a multi-task network structure consists of a shared backbone and task-specific…

Computer Vision and Pattern Recognition · Computer Science 2023-12-15 Yi Xin , Junlong Du , Qiang Wang , Ke Yan , Shouhong Ding

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

Developing 3D semantic occupancy prediction models often relies on dense 3D annotations for supervised learning, a process that is both labor and resource-intensive, underscoring the need for label-efficient or even label-free approaches.…

Computer Vision and Pattern Recognition · Computer Science 2025-04-04 Samuel Sze , Daniele De Martini , Lars Kunze

We study the problem of traffic forecasting, aiming to predict the inflow and outflow of a region in the subsequent time slot. The problem is complex due to the intricate spatial and temporal interdependence among regions. Prior works study…

Artificial Intelligence · Computer Science 2025-11-12 Zheng Chenghong , Zongyin Deng , Liu Cheng , Xiong Simin , Di Deshi , Li Guanyao

Semi-supervised video object segmentation is a task of segmenting the target object in a video sequence given only a mask annotation in the first frame. The limited information available makes it an extremely challenging task. Most previous…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Yunyao Mao , Ning Wang , Wengang Zhou , Houqiang Li

Pretrained vision-language models (VLMs) such as CLIP have shown impressive generalization capability in downstream vision tasks with appropriate text prompts. Instead of designing prompts manually, Context Optimization (CoOp) has been…

Computer Vision and Pattern Recognition · Computer Science 2023-02-15 Chengcheng Ma , Yang Liu , Jiankang Deng , Lingxi Xie , Weiming Dong , Changsheng Xu

Per-object distance estimation is critical in surveillance and autonomous driving, where safety is crucial. While existing methods rely on geometric or deep supervised features, only a few attempts have been made to leverage self-supervised…

Computer Vision and Pattern Recognition · Computer Science 2025-02-05 Aniello Panariello , Gianluca Mancusi , Fedy Haj Ali , Angelo Porrello , Simone Calderara , Rita Cucchiara

While camera and LiDAR are widely used in most of the assisted and autonomous driving systems, only a few works have been proposed to associate the temporal synchronization and extrinsic calibration for camera and LiDAR which are dedicated…

Robotics · Computer Science 2022-07-22 Shouan Wang , Xinyu Zhang , GuiPeng Zhang , Yijin Xiong , Ganglin Tian , Shichun Guo , Jun Li

In nonlinear dynamical systems, tipping refers to a critical transition from one steady state to another, typically catastrophic, steady state, often resulting from a saddle-node bifurcation. Recently, the machine-learning framework of…

Chaotic Dynamics · Physics 2026-04-09 Smita Deb , Zheng-Meng Zhai , Mulugeta Haile , Ying-Cheng Lai

Autonomously exploring the unknown physical properties of novel objects such as stiffness, mass, center of mass, friction coefficient, and shape is crucial for autonomous robotic systems operating continuously in unstructured environments.…

Robotics · Computer Science 2024-05-24 Anirvan Dutta , Etienne Burdet , Mohsen Kaboli

With information from multiple input modalities, sensor fusion-based algorithms usually out-perform their single-modality counterparts in robotics. Camera and LIDAR, with complementary semantic and depth information, are the typical choices…

Computer Vision and Pattern Recognition · Computer Science 2022-07-11 Akio Kodaira , Yiyang Zhou , Pengwei Zang , Wei Zhan , Masayoshi Tomizuka