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A mean-field approach (MFA) is proposed for the analysis of orientational order in a two-dimensional system of stochastic self-propelled particles interacting by local velocity alignment mechanism. The treatment is applied to the cases of…

Statistical Mechanics · Physics 2009-11-13 Fernando Peruani , Andreas Deutsch , Markus Baer

In AI-driven medical imaging, the failure to detect out-of-distribution (OOD) data poses a severe risk to clinical reliability, potentially leading to critical diagnostic errors. Current OOD detection methods often demand impractical…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Dariush Lotfi , Mohammad-Ali Nikouei Mahani , Mohamad Koohi-Moghadam , Kyongtae Ty Bae

Deep neural networks (DNNs) remain challenged by distribution shifts in complex open-world domains like automated driving (AD): Robustness against yet unknown novel objects (semantic shift) or styles like lighting conditions (covariate…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Mert Keser , Halil Ibrahim Orhan , Niki Amini-Naieni , Gesina Schwalbe , Alois Knoll , Matthias Rottmann

We present adaptive strategies for antenna selection for Direction of Arrival (DoA) estimation of a far-field source using TDM MIMO radar with linear arrays. Our treatment is formulated within a general adaptive sensing framework that uses…

Systems and Control · Computer Science 2017-04-12 David Mateos-Núñez , María A. González-Huici , Renato Simoni , Stefan Brüggenwirth

Millimeter wave provides a very promising approach for meeting the ever-growing traffic demand in next generation wireless networks. To utilize this band, it is crucial to obtain the channel state information in order to perform beamforming…

Information Theory · Computer Science 2015-12-22 Chuang Zhang , Dongning Guo , Pingyi Fan

A novel relative localization approach for guidance of a micro-scale Unmanned Aerial Vehicle (UAV) by a well-equipped aerial robot fusing Visual-Inertial Odometry (VIO) with Light Detection and Ranging (LiDAR) is proposed in this paper.…

Robotics · Computer Science 2026-03-05 Václav Pritzl , Matouš Vrba , Petr Štěpán , Martin Saska

The conventional direction of arrival (DOA) estimation methods are performed with multiple receiving channels. In this paper, a changeling DOA estimation problem is addressed in a different scenario with only one full-functional receiving…

Signal Processing · Electrical Eng. & Systems 2022-03-22 Peng Chen , Zhimin Chen , Beixiong Zheng , Xianbin Wang

Probabilistic state-estimation approaches offer a principled foundation for designing localization systems, because they naturally integrate sequences of imperfect motion and exteroceptive sensor data. Recently, probabilistic localization…

Robotics · Computer Science 2021-07-19 Ming Xu , Tobias Fischer , Niko Sünderhauf , Michael Milford

An indoor localization approach uses Wi-Fi Access Points (APs) to estimate the Direction of Arrival (DoA) of the WiFi signals. This paper demonstrates FIND, a tool for Fine INDoor localization based on a software-defined radio, which…

Networking and Internet Architecture · Computer Science 2021-03-10 Evgeny Khorov , Aleksey Kureev , Vladislav Molodtsov

Reliable localization is a fundamental requirement for multi-robot systems operating in GPS-denied environments. Visual-inertial odometry (VIO) provides lightweight and accurate motion estimation but suffers from cumulative drift in the…

Robotics · Computer Science 2026-02-24 Ziwei Kang , Yizhi Zhou

For recursive circular filtering based on circular statistics, we introduce a general framework for estimation of a circular state based on different circular distributions, specifically the wrapped normal distribution and the von Mises…

Systems and Control · Computer Science 2018-01-01 Gerhard Kurz , Igor Gilitschenski , Uwe D. Hanebeck

This paper presents a dual quaternion framework for 6-DOF visual target tracking that addresses key limitations of perspective-n-point (P$n$P) solvers: sensitivity to noise and outliers, and inability to propagate estimates through…

Systems and Control · Electrical Eng. & Systems 2026-05-05 Nicholas B. Andrews , Kristi A. Morgansen

The complex and dynamic real-world clinical environment demands reliable deep learning (DL) systems. Out-of-distribution (OOD) detection plays a critical role in enhancing the reliability and generalizability of DL models when encountering…

Computer Vision and Pattern Recognition · Computer Science 2026-04-16 Jiangbei Yue , Darren Treanor , Venkataraman Subramanian , Sharib Ali

In this paper, we propose an Invariant Extended Kalman Filter (IEKF) based Visual-Inertial Odometry (VIO) using multiple features in man-made environments. Conventional EKF-based VIO usually suffers from system inconsistency and angular…

Robotics · Computer Science 2023-11-09 Tong Hua , Tao Li , Liang Pang , Guoqing Liu , Wencheng Xuanyuan , Chang Shu , Ling Pei

Spherical distributions, in particular, the von Mises-Fisher distribution, are often used for problems using or modelling directional data. Since expectation and variance-covariance matrices follow from the first and second moments of the…

Methodology · Statistics 2025-03-14 Alexandra Shyntar , Thomas Hillen

Accurate and scalable underwater multi-agent localization remains a critical challenge due to the constraints of underwater communication. In this work, we propose a multi-agent localization framework using a factor-graph representation…

Robotics · Computer Science 2025-06-18 Kalliyan Velasco , Timothy W. McLain , Joshua G. Mangelson

Although many 3D One-Way Wave-equation Migration (OWEM) methods exist for VTI media, most of them struggle either with the stability, the anisotropic noise or the computational cost. In this paper we present a new method based on a mixed…

The paper deals with state estimation of a spatially distributed system given noisy measurements from pointwise-in-time-and-space threshold sensors spread over the spatial domain of interest. A Maximum A posteriori Probability (MAP)…

Systems and Control · Electrical Eng. & Systems 2019-09-24 Giorgio Battistelli , Luigi Chisci , Nicola Forti , Stefano Gherardini

In this paper we develop the analytical framework for a novel Wireless signal-based Sensing capability for Robotics (WSR) by leveraging robots' mobility. It allows robots to primarily measure relative direction, or Angle-of-Arrival (AOA),…

Robotics · Computer Science 2023-09-06 Ninad Jadhav , Weiying Wang , Diana Zhang , Oussama Khatib , Swarun Kumar , Stephanie Gil

In this paper, we propose a new wireless sensing system equipped with the movable-antenna (MA) array, which can flexibly adjust the positions of antenna elements for improving the sensing performance over conventional antenna arrays with…

Information Theory · Computer Science 2024-05-03 Wenyan Ma , Lipeng Zhu , Rui Zhang