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Christos Papachristos

15 accepted papers

2025

Towards Perpetually-Deployable Ubiquitous Aerial Robotics: An Amphibious Self-Sustainable Solar Small-UAS

ICRA 2025

This work deals with the problem of unlocking perpetual deployment capabilities for small-UAS robotics across the diverse settings of the real world and their challenges, encompassing considerations for marine environments alongside the more common terrestrial ones. Via the progress made within this

Cited by 0SourceScholar
2023

Towards Multi-Day Field Deployment Autonomy: A Long-Term Self-Sustainable Micro Aerial Vehicle Robot

ICRA 2023poster

This works deals with the problem of long-term autonomy in the context of multi-day field deployments of Micro Aerial Vehicle (MAV) systems. To truly depart from the necessity for human intervention for the crucial task of providing battery recharging, and to liberate from the need to operate in a c…

Cited by 9SourceScholar
2022

Autonomous Teamed Exploration of Subterranean Environments using Legged and Aerial Robots

ICRA 2022poster

This paper presents a novel strategy for autonomous teamed exploration of subterranean environments using legged and aerial robots. Tailored to the fact that subterranean settings, such as cave networks and underground mines, often involve complex, large-scale and multi-branched topologies, while wi…

Cited by 112SourcecodeScholar
2021

Environment Reconfiguration Planning for Autonomous Robotic Manipulation to overcome Mobility Constraints

ICRA 2021poster

This paper presents a novel strategy for intelligent robotic environment reconfiguration applied to overcome mobility constraints with an autonomously exploring mobile manipulation system. A realistic problem arising during exploration of unknown challenging environments is the encountering of untra…

Cited by 6SourceScholar
2021

Mobile Manipulation–based Deployment of Micro Aerial Robot Scouts through Constricted Aperture-like Ingress Points

IROS 2021poster

This paper presents a novel strategy for the autonomous deployment of Micro Aerial Vehicle scouts through constricted aperture-like ingress points, by narrowly fitting and launching them with a high-precision Mobile Manipulation robot. A significant problem during exploration and reconnaissance into…

Cited by 14SourceScholar
2020

Learning-based Path Planning for Autonomous Exploration of Subterranean Environments

ICRA 2020poster

In this work we present a new methodology on learning-based path planning for autonomous exploration of subterranean environments using aerial robots. Utilizing a recently proposed graph-based path planner as a "training expert" and following an approach relying on the concepts of imitation learning…

Cited by 57SourceScholar
2019

Contact–based Navigation Path Planning for Aerial Robots

ICRA 2019poster

In this paper the problem of contact-based navigation path planning for aerial robots is considered with the goal of enabling the autonomous in-contact operation on surfaces that can be highly anomalous. Such a capacity can prove critical in inspection through contact missions, as well as when a fly…

Cited by 21SourceScholar
2019

Distributed Radiation Field Estimation and Informative Path Planning for Nuclear Environment Characterization

ICRA 2019poster

This paper details the system and methods designed to enable the autonomous estimation of distributed nuclear radiation fields within complex and possibly GPS-denied environments. A sensing apparatus consisting of three radially placed Thallium-doped Cesium Iodide (CsI(Tl)) scintillators and Silicon…

Cited by 25SourceScholar
2019

Graph-based Path Planning for Autonomous Robotic Exploration in Subterranean Environments

IROS 2019poster

This paper presents a novel strategy for autonomous graph-based exploration path planning in subterranean environments. Attuned to the fact that subterranean settings, such as underground mines, are often large-scale networks of narrow tunnel-like and multi-branched topologies, the proposed planner…

Cited by 196SourceScholar
2018

Radiation Source Localization in GPS-Denied Environments Using Aerial Robots

ICRA 2018poster

This paper details the system and methods developed to enable autonomous nuclear radiation source localization and mapping using aerial robots in GPS-denied environments. A Thallium-doped Cesium Iodide (CsI(Tl)) scintillator and a Silicon Photomultiplier are combined with custom-built electronics fo…

Cited by 62SourceScholar
2018

Visual Saliency-Aware Receding Horizon Autonomous Exploration with Application to Aerial Robotics

ICRA 2018poster

This paper presents a novel strategy for autonomous visual saliency-aware receding horizon exploration of unknown environments using aerial robots. Through a model of visual attention, incrementally built maps are annotated regarding the visual importance and saliency of different objects and entiti…

Cited by 107SourceScholar
2017

Uncertainty-aware receding horizon exploration and mapping using aerial robots

ICRA 2017poster

This paper presents a novel path planning algorithm for autonomous, uncertainty-aware exploration and mapping of unknown environments using aerial robots. The proposed planner follows a two-step, receding horizon, belief space-based approach. At first, in an online computed tree the algorithm finds…

Cited by 211SourceScholar
2015

Aerial robotic tracking of a generalized mobile target employing visual and spatio-temporal dynamic subject perception

IROS 2015poster

This paper proposes a methodology for visual tracking of a dynamic generalized subject within an unknown map, by relying on its perception as a separate entity which can be distinguished spatially and visually from its environment. To this purpose, a 3D-representation of the visible scenery is exami…

Cited by 17SourceScholar