no code implementations • 3 Dec 2024 • Junsu Jang, Florian Meyer
In the undersea environment, positioning is often challenging, and thus, ranging based on passive acoustic data can provide valuable information for subsurface navigation and source localization.
no code implementations • 8 Oct 2024 • Shaoxiu Wei, Mingchao Liang, Florian Meyer
In particular, in problems where plenty of labeled data for the training of neural networks is available, data-driven MOT tends to have advantages compared to traditional methods.
no code implementations • 30 Sep 2024 • Mingchao Liang, Erik Leitinger, Florian Meyer
The factor graph is the starting point for the development of an efficient belief propagation (BP) method for multipath-based SLAM that avoids data preprocessing by a channel estimator.
no code implementations • 30 Aug 2024 • Wenyu Zhang, Mohammad Javad Khojasteh, Florian Meyer
Our numerical results demonstrate that the proposed method can correctly determine the number of sources and provide accurate location estimates.
no code implementations • 10 May 2024 • Tony Tohme, Mohammad Javad Khojasteh, Mohsen Sadr, Florian Meyer, Kamal Youcef-Toumi
The proposed ISR method naturally combines the principles of Invertible Neural Networks (INNs) and Equation Learner (EQL), a neural network-based symbolic architecture for function learning.
no code implementations • 11 Mar 2024 • Thomas Kropfreiter, Jason L. Williams, Florian Meyer
Our numerical results demonstrate the advantages of the proposed method that relies on thresholded cell measurements compared to the conventional multiobject tracking based on point measurements with and without AM.
no code implementations • 6 Mar 2024 • Luisa Watkins, Pietro Stinco, Alessandra Tesei, Florian Meyer
We introduce a Bayesian estimation approach for the passive localization of an acoustic source in shallow water using a single mobile receiver.
1 code implementation • 22 Jan 2024 • Haiqian Yang, Florian Meyer, Shaoxun Huang, Liu Yang, Cristiana Lungu, Monilola A. Olayioye, Markus J. Buehler, Ming Guo
Multicellular self-assembly into functional structures is a dynamic process that is critical in the development and diseases, including embryo development, organ formation, tumor invasion, and others.
no code implementations • 24 Dec 2023 • Mingchao Liang, Erik Leitinger, Florian Meyer
This factor graph is the starting point for the development of an efficient belief propagation (BP) method for multipath-based SLAM that directly uses received radio signals as measurements.
no code implementations • 4 Oct 2023 • Alexander Venus, Erik Leitinger, Stefan Tertinek, Florian Meyer, Klaus Witrisal
We demonstrate that the position-related information enables the algorithm to provide high-accuracy position estimates even in fully obstructed line-of-sight (OLOS) situations.
no code implementations • 11 Aug 2023 • Thomas Kropfreiter, Florian Meyer, David F. Crouse, Stefano Coraluppi, Franz Hlawatsch, Peter Willett
Joint probabilistic data association (JPDA) filter methods and multiple hypothesis tracking (MHT) methods are widely used for multitarget tracking (MTT).
no code implementations • 3 Jul 2023 • Mingchao Liang, Thomas Kropfreiter, Florian Meyer
Our proposed method is based on a new statistical model that introduces a new object hypothesis for each data cell of the raw sensor measurements.
no code implementations • 10 Jun 2023 • Junsu Jang, Florian Meyer
The ability to compute the range rate and range measurements from the pressure field measured using a single hydrophone is demonstrated on real data from the SWellEx-96 experiment.
no code implementations • 3 Jan 2023 • Lukas Wielandner, Erik Leitinger, Florian Meyer, Klaus Witrisal
However, particle-based BP algorithms are known to suffer from particle degeneracy in large and dense networks of mobile agents with high-dimensional states.
no code implementations • 30 Dec 2022 • Wenyu Zhang, Florian Meyer
We perform a numerical evaluation in a passive acoustic monitoring scenario where multiple sources are tracked in 3-D from 1-D time-difference-of-arrival (TDOA) measurements provided by pairs of hydrophones.
no code implementations • 30 Dec 2022 • Wenyu Zhang, Bryan Teague, Florian Meyer
A numerical case study demonstrates the intelligent behavior of a single controlled anchor in a 3-D scenario and the resulting significantly improved localization accuracy.
no code implementations • 16 Dec 2022 • Mingchao Liang, Florian Meyer
State-of-the-art MOT methods fully rely on a statistical model and typically use preprocessed sensor data as measurements.
no code implementations • 16 Nov 2022 • Erik Leitinger, Alexander Venus, Bryan Teague, Florian Meyer
A key aspect of the proposed estimation method based on MVAs is to check the availability of singlebounce and double-bounce propagation paths at a specific agent position by means of ray-launching.
Indoor Localization Simultaneous Localization and Mapping +1
no code implementations • 22 Oct 2022 • Junsu Jang, Florian Meyer, Eric R. Snyder, Sean M. Wiggins, Simone Baumann-Pickering, John A. Hildebrand
Time-difference-of-arrival (TDOA) measurements of echolocation clicks emitted by odontocetes can be extracted and used for detection, localization, and tracking in 3-D. We propose a data processing chain that automatically detects and tracks multiple odontocetes in 3-D from their echolocation clicks.
1 code implementation • 26 Aug 2022 • Yongsung Park, Florian Meyer, Peter Gerstoft
At each time step, belief propagation predicts the number of DOAs and their DOAs using posterior probability density functions (pdfs) from the previous time and a different Bernoulli-von Mises state transition model.
1 code implementation • 20 Jul 2022 • Yuxuan Xia, Ángel F. García-Fernández, Florian Meyer, Jason L. Williams, Karl Granström, Lennart Svensson
First, we present a PMBM conjugate prior on the posterior of sets of trajectories for a generalized measurement model, in which each object generates an independent set of measurements.
no code implementations • 20 Jun 2022 • Erik Leitinger, Bryan Teague, Wenyu Zhang, Mingchao Liang, Florian Meyer
A promising approach to address this problem is to exchange radio signals between mobile agents and static physical anchors (PAs) that bounce off flat surfaces in the indoor environment.
no code implementations • 17 Mar 2022 • Mingchao Liang, Florian Meyer
Situation-aware technologies enabled by multiobject tracking (MOT) methods will create new services and applications in fields such as autonomous navigation and applied ocean sciences.
no code implementations • 26 Nov 2021 • Domenico Gaglione, Paolo Braca, Giovanni Soldi, Florian Meyer, Franz Hlawatsch, Moe Z. Win
Here, we develop a statistical model and algorithm for tracking an unknown number of targets based on the probabilistic fusion of observations from two classes of data sources.
no code implementations • 14 Sep 2021 • Florian Meyer, Kay L. Gemba
This paper presents a Bayesian estimation method for the passive localization of an acoustic source in shallow water.
no code implementations • 11 Sep 2021 • Thomas Kropfreiter, Florian Meyer, Franz Hlawatsch
Only if a quantity characterizing the plausibility of object existence is above a threshold, a new labeled Bernoulli component is created and the object is tracked by the more accurate but more computationally demanding LMB part of the algorithm.
no code implementations • 3 Sep 2021 • Thomas Kropfreiter, Jason L. Williams, Florian Meyer
We propose a scalable track-before-detect (TBD) tracking method based on a Poisson/multi-Bernoulli model.
no code implementations • 3 Sep 2021 • Thomas Kropfreiter, Florian Meyer, Stefano Coraluppi, Craig Carthel, Rico Mendrzik, Peter Willett
In particular, JPDA suffers from the track coalescence effect, i. e., estimated tracks of targets in close proximity tend to merge and can become indistinguishable.
no code implementations • 8 Jun 2021 • Rico Mendrzik, Florian Meyer
We formulate a holistic Bayesian estimation problem for both data association and pose estimation and present the corresponding joint factor graph.
no code implementations • 27 May 2021 • Mingchao Liang, Florian Meyer
Location-aware networks will introduce innovative services and applications for modern convenience, applied ocean sciences, and public safety.
no code implementations • 21 Mar 2021 • Florian Meyer, Jason L. Williams
The proposed method dynamically introduces states of newly detected objects, efficiently performs probabilistic multiple-measurement to object association, and jointly infers the geometric shapes of objects.
no code implementations • 16 Mar 2021 • Wenyu Zhang, Florian Meyer
Seamless situational awareness provided by modern radar systems relies on effective methods for multiobject tracking (MOT).
no code implementations • 11 Jan 2021 • Florian Meyer, Volker Turau
Results show that QMA considerably increases reliability and throughput in comparison to CSMA/CA, especially in networks with a high load.
Q-Learning Networking and Internet Architecture C.2.2
no code implementations • 4 Aug 2020 • Domenico Gaglione, Giovanni Soldi, Paolo Braca, Giovanni De Magistris, Florian Meyer, Franz Hlawatsch
Multitarget tracking (MTT) is a challenging task that aims at estimating the number of targets and their states from measurements of the target states provided by one or multiple sensors.
no code implementations • 2 Sep 2013 • Florian Meyer, Ondrej Hlinka, Franz Hlawatsch
Here, we extend the SP filter to nonsequential Bayesian inference corresponding to loopy factor graphs.