[HTML][HTML] 3DEG: Data-Driven Descriptor Extraction for Global re-localization in subterranean environments

N Stathoulopoulos, A Koval… - Expert Systems with …, 2024 - Elsevier
Localization algorithms that rely on 3D LiDAR scanners often encounter temporary failures
due to various factors, such as sensor faults, dust particles, or drifting. These failures can …

Communication-Aware Control of Large Data Transmissions via Centralized Cognition and 5G Networks for Multi-Robot Map merging

G Damigos, N Stathoulopoulos, A Koval… - Journal of Intelligent & …, 2024 - Springer
Multiple modern robotic applications benefit from centralized cognition and processing
schemes. However, modern equipped robotic platforms can output a large amount of data …

Redundant and Loosely Coupled LiDAR-Wi-Fi Integration for Robust Global Localization in Autonomous Mobile Robotics

N Stathoulopoulos, E Pagliari, L Davoli… - 2023 21st …, 2023 - ieeexplore.ieee.org
This paper presents a framework addressing the challenge of global localization in
autonomous mobile robotics by integrating LiDAR-based descriptors and Wi-Fi finger …

Irregular Change Detection in Sparse Bi-Temporal Point Clouds Using Learned Place Recognition Descriptors and Point-to-Voxel Comparison

N Stathoulopoulos, A Koval… - 2023 IEEE/RSJ …, 2023 - ieeexplore.ieee.org
Change detection and irregular object extraction in 3D point clouds is a challenging task that
is of high importance not only for autonomous navigation but also for updating existing …

RecNet: An Invertible Point Cloud Encoding through Range Image Embeddings for Multi-Robot Map Sharing and Reconstruction

N Stathoulopoulos, MAV Saucedo, A Koval… - arXiv preprint arXiv …, 2024 - arxiv.org
In the field of resource-constrained robots and the need for effective place recognition in
multi-robotic systems, this article introduces RecNet, a novel approach that concurrently …

Efficient and Distributed Large-Scale 3D Map Registration using Tomographic Features

HU Unlu, A Tzes, P Krishnamurthy… - arXiv preprint arXiv …, 2024 - arxiv.org
A robust, resource-efficient, distributed, and minimally parameterized 3D map matching and
merging algorithm is proposed. The suggested algorithm utilizes tomographic features from …

FRAME: A Modular Framework for Autonomous Map-merging: Advancements in the Field

N Stathoulopoulos, B Lindqvist, A Koval… - arXiv preprint arXiv …, 2024 - arxiv.org
In this article, a novel approach for merging 3D point cloud maps in the context of egocentric
multi-robot exploration is presented. Unlike traditional methods, the proposed approach …

A Comparative Field Study of Global Pose Estimation Algorithms in Subterranean Environments

N Stathoulopoulos, A Koval… - International Journal of …, 2024 - Springer
In this article, we perform a novel and extended field evaluation of the state-of-the-art
algorithmic frameworks' performance on global pose estimation. More specifically, we focus …

A Standard Rigid Transformation Notation Convention for Robotics Research

P Nadeau - arXiv preprint arXiv:2405.07351, 2024 - arxiv.org
Notation conventions for rigid transformations are as diverse as they are fundamental to the
field of robotics. A well-defined convention that is practical, consistent and unambiguous is …