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This paper introduces a framework based on linear splines for 2-dimensional extended object tracking and classification. Unlike state of the art models, linear splines allow to represent extended objects whose contour is an arbitrarily…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Matteo Tesori , Giorgio Battistelli , Luigi Chisci

A mesh refinement method is developed for solving bang-bang optimal control problems using direct collocation. The method starts by finding a solution on a coarse mesh. Using this initial solution, the method then determines automatically…

Optimization and Control · Mathematics 2019-05-31 Yunus M. Agamawi , William W. Hager , Anil V. Rao

The generalized direction detection (GDD) problem involves determining the presence of a signal of interest within matrix-valued data, where the row and column spaces of the signal (if present) are known, but the speciffc coordinates are…

Applications · Statistics 2025-05-09 Zhenyu Xu , Weijian Liu , Changfei Wu , Qinglei Du , Jun Liu

We present a refinement of the Spectral Method by incorporating an optimization method into it and generalize it to two space dimensions. We then apply this Refined Spectral Method as an extremely accurate technique for finding the bound…

Mathematical Physics · Physics 2007-05-23 P. Pedram , M. Mirzaei , S. S. Gousheh

A coordinate system is proposed that replaces the usual three-dimensional Cartesian x,y,z position coordinates, for use in robotic localization applications. Range, azimuth, and elevation measurement models become greatly simplified, and,…

Robotics · Computer Science 2021-09-21 Charles Champagne Cossette , Mohammed Shalaby , David Saussié , James Richard Forbes

In this paper, an efficient and high-order accuracy finite difference method is proposed for solving multidimensional nonlinear Burgers' equation. The third-order three stage Runge-Kutta total variation diminishing (TVD) scheme is employed…

Numerical Analysis · Mathematics 2018-05-23 Kejia Pan , Xiaoxin Wu , Xiaoqiang Yue , Runxin Ni

Fiber-delay measurement is one of the key fundamental technologies in numerous fields. Here we propose and experimentally demonstrate a high-precision and concise optical time delay measurement system based on the technique of linear…

Optics · Physics 2023-12-19 Yufei Zhang , Ziyang Chen , Dongrui Yu , Jialin Niu , Xing Chen , Hong Guo

Directional data are constrained to lie on the unit sphere of~$\mathbb{R}^q$ for some~$q\geq 2$. To address the lack of a natural ordering for such data, depth functions have been defined on spheres. However, the depths available either…

Statistics Theory · Mathematics 2018-08-06 Giuseppe Pandolfo , Davy Paindaveine , Giovanni Porzio

Direct solution of simultaneous linear equations is regarded to be slow for large systems of equations and requires special treatment to avoid numerical instability. A new method is proposed that addresses the numerical instability without…

Numerical Analysis · Mathematics 2011-05-02 Anoosh Abdy

Flow-based methods for sampling and generative modeling use continuous-time dynamical systems to represent a {transport map} that pushes forward a source measure to a target measure. The introduction of a time axis provides considerable…

Machine Learning · Statistics 2025-06-19 Panos Tsimpos , Zhi Ren , Jakob Zech , Youssef Marzouk

We propose directed time series regression, a new approach to estimating parameters of time-series models for use in certainty equivalent model predictive control. The approach combines merits of least squares regression and empirical…

Machine Learning · Computer Science 2012-07-02 Yi-Hao Kao , Benjamin Van Roy

The best beam steering directions are estimated through beam training, which is one of the most important and challenging tasks in millimeter-wave and sub-terahertz communications. Novel array architectures and signal processing techniques…

Signal Processing · Electrical Eng. & Systems 2020-07-20 Veljko Boljanovic , Han Yan , Chung-Ching Lin , Soumen Mohapatra , Deukhyoun Heo , Subhanshu Gupta , Danijela Cabric

Direct measurement of acceleration is a key scientific goal for both cosmology and exoplanets. For cosmology, the concept of redshift drift (more than 60 years old by the 2020s) could directly establish the…

Traditionally, the delay margin of a looped system is computed by considering both the controller and system representations that evolve in the same space (e.g. either continuous or discrete-time). However, as in practice the system is…

Systems and Control · Computer Science 2018-11-30 V. Bellet , C. Poussot-Vassal , C. Pagetti , T. Loquen

There has been some interest recently in determining the longest distance one can sail for on the earth without hitting land, as well as in the converse problem of determining the longest distance one could drive for on the earth without…

History and Overview · Mathematics 2018-07-03 Rohan Chabukswar , Kushal Mukherjee

In bearing only tracking using a towed array, the array can sense the bearing angle of the target but is unable to differentiate whether the target is on the left or the right side of the array. Thus, the traditional tracking algorithm…

Signal Processing · Electrical Eng. & Systems 2023-02-06 Shreya Das , Ranjeet Kumar Tiwari , Shovan Bhaumik

Selective robotic harvesting is a promising technological solution to address labour shortages which are affecting modern agriculture in many parts of the world. For an accurate and efficient picking process, a robotic harvester requires…

Computer Vision and Pattern Recognition · Computer Science 2023-10-18 Justin Le Louëdec , Grzegorz Cielniak

This paper is part of a program to combine a staggered time and staggered spatial discretization of continuum wave equations so that important properties of the continuum that are proved using vector calculus can be proven in an analogous…

Numerical Analysis · Mathematics 2020-10-13 Stanly Steinberg

Recent developments in the remote sensing systems and image processing made it possible to propose a new method of the object classification and detection of the specific changes in the series of satellite Earth images (so called targeted…

Computer Vision and Pattern Recognition · Computer Science 2018-03-16 Vladimir Ignatiev , Alexey Trekin , Viktor Lobachev , Georgy Potapov , Evgeny Burnaev

The goal of the change-point detection is to discover changes of time series distribution. One of the state of the art approaches of the change-point detection are based on direct density ratio estimation. In this work we show how existing…

Machine Learning · Computer Science 2022-06-22 Mikhail Hushchyn , Andrey Ustyuzhanin
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