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Most existing cross-view object geo-localization approaches adopt anchor-based paradigm. Although effective, such methods are inherently constrained by predefined anchors. To eliminate this dependency, we first propose an anchor-free…

计算机视觉与模式识别 · 计算机科学 2025-10-01 Xingtao Ling , Chenlin Fu , Yingying Zhu

This paper introduces a generic filter-based state estimation framework that supports two state-decoupling strategies based on cross-covariance factorization. These strategies reduce the computational complexity and inherently support true…

机器人学 · 计算机科学 2024-08-27 Roland Jung , Luca Santoro , Davide Brunelli , Daniele Fontanelli , Stephan Weiss

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…

计算机视觉与模式识别 · 计算机科学 2020-09-30 Heng Zhang , Elisa Fromont , Sébastien Lefevre , Bruno Avignon

This paper studies the problem of determining the sensor locations in a large sensor network using relative distance (range) measurements only. Our work follows from a seminal paper by Khan et al. [1] where a distributed algorithm, known as…

信息论 · 计算机科学 2013-01-15 Yingfei Diao , Zhiyun Lin , Minyue Fu , Huanshui Zhang

Supervised keypoint localization methods rely on large manually labeled image datasets, where objects can deform, articulate, or occlude. However, creating such large keypoint labels is time-consuming and costly, and is often error-prone…

计算机视觉与模式识别 · 计算机科学 2023-03-31 Xingzhe He , Gaurav Bharaj , David Ferman , Helge Rhodin , Pablo Garrido

Given that the accuracy of range-based positioning techniques generally increases with the number of available anchor nodes, it is important to secure more of these nodes. To this end, this paper studies an unsupervised learning technique…

网络与互联网体系结构 · 计算机科学 2019-07-24 Jeongsik Choi , Yang-Seok Choi , Shilpa Talwar

We address the visual relocalization problem of predicting the location and camera orientation or pose (6DOF) of the given input scene. We propose a method based on how humans determine their location using the visible landmarks. We define…

计算机视觉与模式识别 · 计算机科学 2018-11-13 Soham Saha , Girish Varma , C. V. Jawahar

LiDAR 3D object detection models are inevitably biased towards their training dataset. The detector clearly exhibits this bias when employed on a target dataset, particularly towards object sizes. However, object sizes vary heavily between…

计算机视觉与模式识别 · 计算机科学 2022-10-18 Dušan Malić , Christian Fruhwirth-Reisinger , Horst Possegger , Horst Bischof

Recently, motivated by the rapid increase of the data size in various applications, Monemizadeh [APPROX'23] and Driemel, Monemizadeh, Oh, Staals, and Woodruff [SoCG'25] studied geometric problems in the setting where the only access to the…

计算几何 · 计算机科学 2026-03-24 T. Schibler , J. Xue , J. Zhu

We study the problem of high accuracy localization of mobile nodes in a multipath-rich environment where sub-meter accuracies are required. We employ a peer-to-peer framework where the vehicles/nodes can get pairwise multipath-degraded…

网络与互联网体系结构 · 计算机科学 2012-11-09 Venkatesan. N. Ekambaram , Kannan Ramchandran , Raja Sengupta

In this work, the problem of localizing ground devices (GDs) is studied comparing the performance of four range-free (RF) localization algorithms that use a mobile anchor (MA). All the investigated algorithms are based on the so-called…

信号处理 · 电气工程与系统科学 2021-03-08 Francesco Betti Sorbelli , Sajal K. Das , Cristina M. Pinotti , Giulio Rigoni

We study the problem of determining the configuration of $n$ points by using their distances to $m$ nodes, referred to as anchor nodes. One sampling scheme is Nystrom sampling, which assumes known distances between the anchors and between…

信息论 · 计算机科学 2024-08-01 Samuel Lichtenberg , Abiy Tasissa

Ship detection has been an active and vital topic in the field of remote sensing for a decade, but it is still a challenging problem due to the large scale variations, the high aspect ratios, the intensive arrangement, and the background…

计算机视觉与模式识别 · 计算机科学 2020-07-27 Lingyi Liu , Yunpeng Bai , Ying Li

Oriented object detection in aerial images poses a significant challenge due to their varying sizes and orientations. Current state-of-the-art detectors typically rely on either two-stage or one-stage approaches, often employing…

计算机视觉与模式识别 · 计算机科学 2025-07-15 Phuc D. A. Nguyen

Real-time single-stage object detectors based on deep learning still remain less accurate than more complex ones. The trade-off between model performance and computational speed is a major challenge. In this paper, we propose a new way to…

计算机视觉与模式识别 · 计算机科学 2020-03-18 Florian Chabot , Quoc-Cuong Pham , Mohamed Chaouch

In object detection, determining which anchors to assign as positive or negative samples, known as anchor assignment, has been revealed as a core procedure that can significantly affect a model's performance. In this paper we propose a…

计算机视觉与模式识别 · 计算机科学 2020-09-08 Kang Kim , Hee Seok Lee

Recent research has seen numerous supervised learning-based methods for 3D shape segmentation and remarkable performance has been achieved on various benchmark datasets. These supervised methods require a large amount of annotated data to…

计算机视觉与模式识别 · 计算机科学 2021-07-08 Xiang Li , Lingjing Wang , Yi Fang

The performance of supervised deep learning methods for medical image segmentation is often limited by the scarcity of labeled data. As a promising research direction, semi-supervised learning addresses this dilemma by leveraging unlabeled…

图像与视频处理 · 电气工程与系统科学 2024-05-13 Zihang Liu , Chunhui Zhao

We develop a unified Fisher-information framework for localization in environments with both Line-of-Sight (LOS) and Non-Line-of-Sight (NLOS) paths, focusing on diffraction-dominated NLOS propagation characteristic of Outdoor-to-Indoor…

信号处理 · 电气工程与系统科学 2026-04-02 Gaurav Duggal , R. Michael Buehrer , Harpreet S. Dhillon , Jeffrey H. Reed

Reliable localization is critical for robot navigation in complex indoor environments. In this paper, we propose an uncertainty-aware localization method that enhances the reliability of localization outputs without modifying the prediction…

机器人学 · 计算机科学 2025-04-23 Hye-Min Won , Jieun Lee , Jiyong Oh