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Many parametrization and mapping-related problems in geometry processing can be viewed as metric optimization problems, i.e., computing a metric minimizing a functional and satisfying a set of constraints, such as flatness. Penner…

Computational Geometry · Computer Science 2024-03-06 Ryan Capouellez , Denis Zorin

Localization in already mapped environments is a critical component in many robotics and automotive applications, where previously acquired information can be exploited along with sensor fusion to provide robust and accurate localization…

Robotics · Computer Science 2024-09-10 Lorenzo Montano-Oliván , Julio A. Placed , Luis Montano , María T. Lázaro

The Received Signal Strength based source localization can encounter severe problems originating from uncertain information about the anchor positions in practice. The anchor positions, although commonly assumed to be precisely known prior…

Information Theory · Computer Science 2016-12-30 Daniel Denkovski , Marko Angjelichinoski , Vladimir Atanasovski , Liljana Gavrilovska

In this paper we study the distance-based docking problem of unmanned aerial vehicles (UAVs) by using a single landmark placed at an arbitrarily unknown position. To solve the problem, we propose an integrated estimation-control scheme to…

Systems and Control · Computer Science 2019-01-25 Thien-Minh Nguyen , Zhirong Qiu , Muqing Cao , Thien Hoang Nguyen , Lihua Xie

In this manuscript we consider the well-established problem of TDOA-based source localization and propose a comprehensive analysis of its solutions for arbitrary sensor measurements and placements. More specifically, we define the TDOA map…

Mathematical Physics · Physics 2014-02-13 Marco Compagnoni , Roberto Notari , Fabio Antonacci , Augusto Sarti

The zonotope containment problem, i.e., whether one zonotope is contained in another, is a central problem in control theory. Applications include detecting faults and robustifying controllers by computing invariant sets, and obtain fixed…

Optimization and Control · Mathematics 2025-07-31 Adrian Kulmburg , Lukas Schäfer , Matthias Althoff

Visual localization is the task of accurate camera pose estimation in a known scene. It is a key problem in computer vision and robotics, with applications including self-driving cars, Structure-from-Motion, SLAM, and Mixed Reality.…

Computer Vision and Pattern Recognition · Computer Science 2019-03-19 Torsten Sattler , Qunjie Zhou , Marc Pollefeys , Laura Leal-Taixe

In this paper we study a class of embeddings of tent inverse limit spaces. We introduce techniques relying on the Milnor-Thurston kneading theory and use them to study sets of accessible points and prime ends of given embeddings. We…

Dynamical Systems · Mathematics 2019-02-04 Ana Anusic , Jernej Cinc

We derive conditions for the existence of fixed points of cone mappings without assuming scalability of functions. Monotonicity and scalability are often inseparable in the literature in the context of searching for fixed points of…

Dynamical Systems · Mathematics 2022-09-09 Grzegorz Gabor , Krzysztof Rykaczewski

Random embeddings project high-dimensional spaces to low-dimensional ones; they are careful constructions which allow the approximate preservation of key properties, such as the pair-wise distances between points. Often in the field of…

Optimization and Control · Mathematics 2022-06-08 Zhen Shao

Inner-approximate reachability analysis involves calculating subsets of reachable sets, known as inner-approximations. This analysis is crucial in the fields of dynamic systems analysis and control theory as it provides a reliable…

Systems and Control · Electrical Eng. & Systems 2024-05-22 Dejin Ren , Zhen Liang , Chenyu Wu , Jianqiang Ding , Taoran Wu , Bai Xue

In this paper, we study imitation learning under the challenging setting of: (1) only a single demonstration, (2) no further data collection, and (3) no prior task or object knowledge. We show how, with these constraints, imitation learning…

Robotics · Computer Science 2023-10-19 Pietro Vitiello , Kamil Dreczkowski , Edward Johns

Re-localizing a camera from a single image in a previously mapped area is vital for many computer vision applications in robotics and augmented/virtual reality. In this work, we address the problem of estimating the 6 DoF camera pose…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Mohammad Altillawi , Zador Pataki , Shile Li , Ziyuan Liu

The detection and localization of a target from samples of its generated field is a problem of interest in a broad range of applications. Often, the target field admits structural properties that enable the design of lower sample detection…

Information Theory · Computer Science 2016-01-28 Sunav Choudhary , Naveen Kumar , Srikanth Narayanan , Urbashi Mitra

This paper introduces an efficient procedure to localize user-defined points on the surface of deformable objects and track their positions in 3D space over time. To cope with a deformable object's infinite number of DOF, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2021-05-20 Sven Dittus , Benjamin Alt , Andreas Hermann , Darko Katic , Rainer Jäkel , Jürgen Fleischer

We learn, in an unsupervised way, an embedding from sequences of radar images that is suitable for solving the place recognition problem with complex radar data. Our method is based on invariant instance feature learning but is tailored for…

Computer Vision and Pattern Recognition · Computer Science 2021-10-07 Matthew Gadd , Daniele De Martini , Paul Newman

Accurate indoor node localization is critical for practical Wireless Sensor Network (WSN) applications, as Global Positioning System (GPS) fails to provide reliable Line-of-Sight (LoS) conditions in most indoor environments. Real-world…

Networking and Internet Architecture · Computer Science 2025-05-26 Ze Zhang , Qian Dong

The identifiability problem arises naturally in a number of contexts in mathematics and computer science. Specific instances include local or global rigidity of graphs and unique completability of partially-filled tensors subject to rank…

Metric Geometry · Mathematics 2024-01-24 James Cruickshank , Fatemeh Mohammadi , Anthony Nixon , Shin-ichi Tanigawa

We study two sensor assignment problems for multi-target tracking with the goal of improving the observability of the underlying estimator. We consider various measures of the observability matrix as the assignment value function. We first…

Robotics · Computer Science 2018-10-24 Lifeng Zhou , Pratap Tokekar

Recent literature has shown that symbolic data, such as text and graphs, is often better represented by points on a curved manifold, rather than in Euclidean space. However, geometrical operations on manifolds are generally more complicated…

Machine Learning · Computer Science 2019-02-06 Max Aalto , Nakul Verma