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Cross-view geo-localization determines the location of a query image, captured by a drone or ground-based camera, by matching it to a geo-referenced satellite image. While traditional approaches focus on image-level localization, many…

Computer Vision and Pattern Recognition · Computer Science 2025-05-26 Zheyang Huang , Jagannath Aryal , Saeid Nahavandi , Xuequan Lu , Chee Peng Lim , Lei Wei , Hailing Zhou

3D single object tracking is a key issue for robotics. In this paper, we propose a transformer module called Point-Track-Transformer (PTT) for point cloud-based 3D single object tracking. PTT module contains three blocks for feature…

Computer Vision and Pattern Recognition · Computer Science 2021-10-08 Jiayao Shan , Sifan Zhou , Zheng Fang , Yubo Cui

3D object detection in point clouds is important for autonomous driving systems. A primary challenge in 3D object detection stems from the sparse distribution of points within the 3D scene. Existing high-performance methods typically employ…

Computer Vision and Pattern Recognition · Computer Science 2023-11-01 Gang Zhang , Junnan Chen , Guohuan Gao , Jianmin Li , Xiaolin Hu

Multi-object tracking (MOT) has profound applications in a variety of fields, including surveillance, sports analytics, self-driving, and cooperative robotics. Despite considerable advancements, existing MOT methodologies tend to falter…

Computer Vision and Pattern Recognition · Computer Science 2023-12-20 Hamza Mukhtar , Muhammad Usman Ghani Khan

For current object detectors, the scale of the receptive field of feature extraction operators usually increases layer by layer. Those operators are called scale-oriented operators in this paper, such as the convolution layer in CNN, and…

Computer Vision and Pattern Recognition · Computer Science 2021-02-09 Jie Li , Yu Hu

Point cloud semantic segmentation plays an essential role in autonomous driving, providing vital information about drivable surfaces and nearby objects that can aid higher level tasks such as path planning and collision avoidance. While…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Ozan Unal , Luc Van Gool , Dengxin Dai

Three-dimensional objects are commonly represented as 3D boxes in a point-cloud. This representation mimics the well-studied image-based 2D bounding-box detection but comes with additional challenges. Objects in a 3D world do not follow any…

Computer Vision and Pattern Recognition · Computer Science 2021-10-11 Tianwei Yin , Xingyi Zhou , Philipp Krähenbühl

In this paper, we propose a novel self-training approach named Crowd-SDNet that enables a typical object detector trained only with point-level annotations (i.e., objects are labeled with points) to estimate both the center points and sizes…

Computer Vision and Pattern Recognition · Computer Science 2021-02-19 Yi Wang , Junhui Hou , Xinyu Hou , Lap-Pui Chau

Anchor-based Siamese trackers have achieved remarkable advancements in accuracy, yet the further improvement is restricted by the lagged tracking robustness. We find the underlying reason is that the regression network in anchor-based…

Computer Vision and Pattern Recognition · Computer Science 2020-07-10 Zhipeng Zhang , Houwen Peng , Jianlong Fu , Bing Li , Weiming Hu

Siamese-based trackers have achieved excellent performance on visual object tracking. However, the target template is not updated online, and the features of the target template and search image are computed independently in a Siamese…

Computer Vision and Pattern Recognition · Computer Science 2021-03-25 Yuechen Yu , Yilei Xiong , Weilin Huang , Matthew R. Scott

Category-specific models are provenly valuable methods in 3D single object tracking (SOT) regardless of Siamese or motion-centric paradigms. However, such over-specialized model designs incur redundant parameters, thus limiting the broader…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Jiahao Nie , Zhiwei He , Xudong Lv , Xueyi Zhou , Dong-Kyu Chae , Fei Xie

A fundamental challenge in point cloud object detection lies in the conflict between the extreme sparsity of distant points and the need for remote context understanding. The existing methods typically use 1D serialization to expand the…

Computer Vision and Pattern Recognition · Computer Science 2026-05-18 Bingwen Qiu , Yuan Liu , Junqi Bai , Tong Jiang , Ben Liang , Fangzhou Chen , Xiubao Sui , Qian Chen

This paper presents a novel joint neural networks approach to address the challenging one-shot object recognition and detection tasks. Inspired by Siamese neural networks and state-of-art multi-box detection approaches, the joint neural…

Computer Vision and Pattern Recognition · Computer Science 2024-08-02 Camilo J. Vargas , Qianni Zhang , Ebroul Izquierdo

In 3D point cloud object tracking, the motion-centric methods have emerged as a promising avenue due to its superior performance in modeling inter-frame motion. However, existing two-stage motion-based approaches suffer from fundamental…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Sifan Zhou , Jiahao Nie , Ziyu Zhao , Yichao Cao , Xiaobo Lu

In this paper, we present a novel siamese motion-aware network (SiamMan) for visual tracking, which consists of the siamese feature extraction subnetwork, followed by the classification, regression, and localization branches in parallel.…

Computer Vision and Pattern Recognition · Computer Science 2020-01-22 Wenzhang Zhou , Longyin Wen , Libo Zhang , Dawei Du , Tiejian Luo , Yanjun Wu

Recently Deep Learning based Siamese Networks with region proposals for visual object tracking becoming more popular. These networks, while testing, perform extra computations on output if trained network, to predict the bounding box. This…

Image and Video Processing · Electrical Eng. & Systems 2020-01-28 Mohana Murali Dasari , Rama Krishna Sai Subrahmanyam Gorthi

Self-supervised learning (SSL) methods based on Siamese networks learn visual representations by aligning different views of the same image. The multi-crop strategy, which incorporates small local crops to global ones, enhances many SSL…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Pierre-François De Plaen , Abhishek Jha , Luc Van Gool , Tinne Tuytelaars , Marc Proesmans

Current 3D object detection methods are heavily influenced by 2D detectors. In order to leverage architectures in 2D detectors, they often convert 3D point clouds to regular grids (i.e., to voxel grids or to bird's eye view images), or rely…

Computer Vision and Pattern Recognition · Computer Science 2019-08-26 Charles R. Qi , Or Litany , Kaiming He , Leonidas J. Guibas

Weakly supervised object detection(WSOD) task uses only image-level annotations to train object detection task. WSOD does not require time-consuming instance-level annotations, so the study of this task has attracted more and more…

Computer Vision and Pattern Recognition · Computer Science 2019-11-27 Sheng Yi , Xi Li , Huimin Ma

A consistent trend throughout the research of oriented object detection has been the pursuit of maintaining comparable performance with fewer and weaker annotations. This is particularly crucial in the remote sensing domain, where the dense…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Wei Zhang , Xiang Liu , Ningjing Liu , Mingxin Liu , Wei Liao , Chunyan Xu , Xue Yang