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Current anchor-free object detectors are quite simple and effective yet lack accurate label assignment methods, which limits their potential in competing with classic anchor-based models that are supported by well-designed assignment…

Computer Vision and Pattern Recognition · Computer Science 2021-04-30 Jiachen Li , Bowen Cheng , Rogerio Feris , Jinjun Xiong , Thomas S. Huang , Wen-Mei Hwu , Humphrey Shi

Machine learning is a promising technique for angle-of-arrival (AOA) estimation of waves impinging a sensor array. However, the majority of the methods proposed so far only consider a known, fixed number of impinging waves, i.e., a fixed…

Signal Processing · Electrical Eng. & Systems 2021-11-19 Noud Kanters , Andrés Alayón Glazunov

Orientation learning plays a pivotal role in many tasks. However, the rotation group SO(3) is a Riemannian manifold. As a result, the distortion caused by non-Euclidean geometric nature introduces difficulties to the incorporation of local…

Robotics · Computer Science 2025-10-10 Gaofeng Li , Peisen Xu , Ruize Wang , Qi Ye , Jiming Chen , Dezhen Song , Yanlong Huang

Creating mobile robots which are able to find and manipulate objects in large environments is an active topic of research. These robots not only need to be capable of searching for specific objects but also to estimate their poses often…

Robotics · Computer Science 2022-03-09 Jascha Hellwig , Mark Baierl , Joao Carvalho , Julen Urain , Jan Peters

Oriented object detection is a fundamental yet challenging task in remote sensing (RS), aiming to locate and classify objects with arbitrary orientations. Recent advancements in deep learning have significantly enhanced the capabilities of…

Computer Vision and Pattern Recognition · Computer Science 2025-08-25 Kun Wang , Zi Wang , Zhang Li , Ang Su , Xichao Teng , Erting Pan , Minhao Liu , Qifeng Yu

In the last twenty years, unmanned aerial vehicles (UAVs) have garnered growing interest due to their expanding applications in both military and civilian domains. Detecting non-cooperative aerial vehicles with efficiency and estimating…

To determine the 3D orientation and 3D location of objects in the surroundings of a camera mounted on a robot or mobile device, we developed two powerful algorithms in object detection and temporal tracking that are combined seamlessly for…

Computer Vision and Pattern Recognition · Computer Science 2017-09-06 David Joseph Tan , Nassir Navab , Federico Tombari

Recent advances in machine learning and hardware have produced embedded devices capable of performing real-time object detection with commendable accuracy. We consider a scenario in which embedded devices rely on an onboard object detector,…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-10-25 Jiaming Qiu , Ruiqi Wang , Brooks Hu , Roch Guerin , Chenyang Lu

In recent years, deep learning methods bring incredible progress to the field of object detection. However, in the field of remote sensing image processing, existing methods neglect the relationship between imaging configuration and…

Computer Vision and Pattern Recognition · Computer Science 2021-01-19 Nuo Xu , Chunlei Huo , Jiacheng Guo , Yiwei Liu , Jian Wang , Chunhong Pan

This paper addresses the problem of tracking in-plane waves from image sequences using periodic surface patterns. Wave-induced deformation is modeled as a spatial phase modulation of a periodic carrier. We propose ADOPT (Analytical…

Signal Processing · Electrical Eng. & Systems 2026-05-20 Jalal Jouidi , Florent Chatelain , Lucie Bailly , Pierre Granjon , Nicolas Le Bihan , Stefan Catheline

Multi-UAV collaborative 3D detection enables accurate and robust perception by fusing multi-view observations from aerial platforms, offering significant advantages in coverage and occlusion handling, while posing new challenges for…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Zhongyao Li , Peirui Cheng , Liangjin Zhao , Chen Chen , Yundu Li , Zhechao Wang , Xue Yang , Xian Sun , Zhirui Wang

Aerial imaging plays a crucial role in navigation and data acquisition for unmanned aerial vehicles and satellite imaging systems. In recent days, the employment of drones has been escalated in several applications that are not limited to…

Computer Vision and Pattern Recognition · Computer Science 2022-12-21 Sai Ganesh CS , Aouthithiye Barathwaj SR Y , R. Swethaa S , R. Azhagumurugan

The goal of anomaly detection is to identify examples that deviate from normal or expected behavior. We tackle this problem for images. We consider a two-phase approach. First, using normal examples, a convolutional autoencoder (CAE) is…

Computer Vision and Pattern Recognition · Computer Science 2020-03-20 Natasa Sarafijanovic-Djukic , Jesse Davis

Deep learning (DL) based object detection has achieved great progress. These methods typically assume that large amount of labeled training data is available, and training and test data are drawn from an identical distribution. However, the…

Computer Vision and Pattern Recognition · Computer Science 2020-11-12 Wanyi Li , Fuyu Li , Yongkang Luo , Peng Wang , Jia sun

Image change detection (ICD) to detect changed objects in front of a vehicle with respect to a place-specific background model using an on-board monocular vision system is a fundamental problem in intelligent vehicle (IV). From the…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Yamaguchi Kousuke , Tanaka Kanji , Sugimoto Takuma , Ide Rino , Takeda Koji

Monocular 3D object detection is a challenging task because depth information is difficult to obtain from 2D images. A subset of viewpoint-agnostic monocular 3D detection methods also do not explicitly leverage scene homography or geometry…

Computer Vision and Pattern Recognition · Computer Science 2025-12-05 Xinxuan Lu , Derek Gloudemans , Shepard Xia , Daniel B. Work

Multiple object tracking (MOT) is a crucial task in computer vision society. However, most tracking-by-detection MOT methods, with available detected bounding boxes, cannot effectively handle static, slow-moving and fast-moving camera…

Computer Vision and Pattern Recognition · Computer Science 2020-06-25 Jiarui Cai , Yizhou Wang , Haotian Zhang , Hung-Min Hsu , Chengqian Ma , Jenq-Neng Hwang

A key challenge for LiDAR-based 3D object detection is to capture sufficient features from large scale 3D scenes especially for distant or/and occluded objects. Albeit recent efforts made by Transformers with the long sequence modeling…

Computer Vision and Pattern Recognition · Computer Science 2023-03-23 Chao Zhou , Yanan Zhang , Jiaxin Chen , Di Huang

Most deep learning object detectors are based on the anchor mechanism and resort to the Intersection over Union (IoU) between predefined anchor boxes and ground truth boxes to evaluate the matching quality between anchors and objects. In…

Computer Vision and Pattern Recognition · Computer Science 2020-09-30 Heng Zhang , Elisa Fromont , Sébastien Lefevre , Bruno Avignon

Object detection aims at high speed and accuracy simultaneously. However, fast models are usually less accurate, while accurate models cannot satisfy our need for speed. A fast model can be 10 times faster but 50\% less accurate than an…

Computer Vision and Pattern Recognition · Computer Science 2017-07-21 Hong-Yu Zhou , Bin-Bin Gao , Jianxin Wu