Search Results for author: Dario Izzo

Found 33 papers, 11 papers with code

Closing the Gap Between SGP4 and High-Precision Propagation via Differentiable Programming

no code implementations7 Feb 2024 Giacomo Acciarini, Atılım Güneş Baydin, Dario Izzo

Thus, we propose a novel orbital propagation paradigm, ML-dSGP4, where neural networks are integrated into the orbital propagator.

Tracking Particles Ejected From Active Asteroid Bennu With Event-Based Vision

no code implementations13 Sep 2023 Loïc J. Azzalini, Dario Izzo

This paper motivates the use of a scientific event camera by reconstructing the particle ejection episodes reported by the OSIRIS-REx mission in a photorealistic scene generator and in turn, simulating event-based observations.

Event-based vision Multi-Object Tracking

On the Generation of a Synthetic Event-Based Vision Dataset for Navigation and Landing

1 code implementation1 Aug 2023 Loïc J. Azzalini, Emmanuel Blazquez, Alexander Hadjiivanov, Gabriele Meoni, Dario Izzo

We anticipate that novel event-based vision datasets can be generated using this pipeline to support various spacecraft pose reconstruction problems given events as input, and we hope that the proposed methodology would attract the attention of researchers working at the intersection of neuromorphic vision and guidance navigation and control.

Event-based vision Scene Generation

Investigation of the Robustness of Neural Density Fields

1 code implementation31 May 2023 Jonas Schuhmacher, Fabio Gratl, Dario Izzo, Pablo Gómez

Hence, this work demonstrates that training neural networks for the gravity inversion problem is appropriate as long as the gravity signal is distinguishable from noise.

Optimality Principles in Spacecraft Neural Guidance and Control

no code implementations22 May 2023 Dario Izzo, Emmanuel Blazquez, Robin Ferede, Sebastien Origer, Christophe De Wagter, Guido C. H. E. de Croon

Spacecraft and drones aimed at exploring our solar system are designed to operate in conditions where the smart use of onboard resources is vital to the success or failure of the mission.

Neuromorphic Computing and Sensing in Space

no code implementations10 Dec 2022 Dario Izzo, Alexander Hadjiivanov, Dominik Dold, Gabriele Meoni, Emmanuel Blazquez

The term ``neuromorphic'' refers to systems that are closely resembling the architecture and/or the dynamics of biological neural networks.

Selected Trends in Artificial Intelligence for Space Applications

no code implementations10 Dec 2022 Dario Izzo, Gabriele Meoni, Pablo Gómez, Dominik Dold, Alexander Zoechbauer

The development and adoption of artificial intelligence (AI) technologies in space applications is growing quickly as the consensus increases on the potential benefits introduced.

Globally Optimal Event-Based Divergence Estimation for Ventral Landing

1 code implementation27 Sep 2022 Sofia McLeod, Gabriele Meoni, Dario Izzo, Anne Mergy, Daqi Liu, Yasir Latif, Ian Reid, Tat-Jun Chin

This is achieved by estimating divergence (inverse TTC), which is the rate of radial optic flow, from the event stream generated during landing.

Symbolic Regression for Space Applications: Differentiable Cartesian Genetic Programming Powered by Multi-objective Memetic Algorithms

no code implementations13 Jun 2022 Marcus Märtens, Dario Izzo

Interpretable regression models are important for many application domains, as they allow experts to understand relations between variables from sparse data.

regression Symbolic Regression

Neural representation of a time optimal, constant acceleration rendezvous

no code implementations29 Mar 2022 Dario Izzo, Sebastien Origer

We train neural models to represent both the optimal policy (i. e. the optimal thrust direction) and the value function (i. e. the time of flight) for a time optimal, constant acceleration low-thrust rendezvous.

Data Augmentation

SPEED+: Next-Generation Dataset for Spacecraft Pose Estimation across Domain Gap

2 code implementations6 Oct 2021 Tae Ha Park, Marcus Märtens, Gurvan Lecuyer, Dario Izzo, Simone D'Amico

Autonomous vision-based spaceborne navigation is an enabling technology for future on-orbit servicing and space logistics missions.

Pose Estimation Spacecraft Pose Estimation

Geodesy of irregular small bodies via neural density fields: geodesyNets

2 code implementations27 May 2021 Dario Izzo, Pablo Gómez

When the body shape information is available, geodesyNets can seamlessly exploit it and be trained to represent a high-fidelity neural density field able to give insights into the internal structure of the body.

3D Reconstruction

Vision-based Neural Scene Representations for Spacecraft

no code implementations11 May 2021 Anne Mergy, Gurvan Lecuyer, Dawa Derksen, Dario Izzo

In advanced mission concepts with high levels of autonomy, spacecraft need to internally model the pose and shape of nearby orbiting objects.

Shadow Neural Radiance Fields for Multi-view Satellite Photogrammetry

1 code implementation20 Apr 2021 Dawa Derksen, Dario Izzo

To accommodate for changing light source conditions both from a directional light source (the Sun) and a diffuse light source (the sky), we extend the NeRF approach in two ways.

Earth Observation Image Reconstruction +3

Safe Crossover of Neural Networks Through Neuron Alignment

no code implementations23 Mar 2020 Thomas Uriot, Dario Izzo

Indeed, naive crossover leads to functionally damaged offspring that do not retain information from the parents.

Real-Time Optimal Guidance and Control for Interplanetary Transfers Using Deep Networks

no code implementations20 Feb 2020 Dario Izzo, Ekin Öztürk

We find that both policy learning and value function learning successfully and accurately learn the optimal thrust and that a spacecraft employing the learned thrust is able to reach the target conditions orbit spending only 2 permil more propellant than in the corresponding mathematically optimal transfer.

Satellite Pose Estimation Challenge: Dataset, Competition Design and Results

no code implementations5 Nov 2019 Mate Kisantal, Sumant Sharma, Tae Ha Park, Dario Izzo, Marcus Märtens, Simone D'Amico

Reliable pose estimation of uncooperative satellites is a key technology for enabling future on-orbit servicing and debris removal missions.

Pose Estimation

Super-Resolution of PROBA-V Images Using Convolutional Neural Networks

no code implementations3 Jul 2019 Marcus Märtens, Dario Izzo, Andrej Krzic, Daniël Cox

ESA's PROBA-V Earth observation satellite enables us to monitor our planet at a large scale, studying the interaction between vegetation and climate and provides guidance for important decisions on our common global future.

Earth Observation Image Super-Resolution

Neural Network Architecture Search with Differentiable Cartesian Genetic Programming for Regression

no code implementations3 Jul 2019 Marcus Märtens, Dario Izzo

The ability to design complex neural network architectures which enable effective training by stochastic gradient descent has been the key for many achievements in the field of deep learning.

regression

Interplanetary Transfers via Deep Representations of the Optimal Policy and/or of the Value Function

no code implementations18 Apr 2019 Dario Izzo, Ekin Öztürk, Marcus Märtens

A number of applications to interplanetary trajectories have been recently proposed based on deep networks.

Learning Dynamic-Objective Policies from a Class of Optimal Trajectories

no code implementations27 Feb 2019 Christopher Iliffe Sprague, Dario Izzo, Petter Ögren

In this paper, we present a novel and straightforward approach to synthesising these policies through a combination of trajectory optimisation, homotopy continuation, and imitation learning.

Imitation Learning

Learning the optimal state-feedback via supervised imitation learning

no code implementations7 Jan 2019 Dharmesh Tailor, Dario Izzo

By substituting expert demonstrations for optimal behaviours, the same paradigm leads to the design of control policies closely approximating the optimal state-feedback.

Imitation Learning

A Survey on Artificial Intelligence Trends in Spacecraft Guidance Dynamics and Control

no code implementations7 Dec 2018 Dario Izzo, Marcus Märtens, Binfeng Pan

The rapid developments of Artificial Intelligence in the last decade are influencing Aerospace Engineering to a great extent and research in this context is proliferating.

On the stability analysis of deep neural network representations of an optimal state-feedback

1 code implementation6 Dec 2018 Dario Izzo, Dharmesh Tailor, Thomas Vasileiou

Recent work have shown how the optimal state-feedback, obtained as the solution to the Hamilton-Jacobi-Bellman equations, can be approximated for several nonlinear, deterministic systems by deep neural networks.

Imitation Learning

Machine learning and evolutionary techniques in interplanetary trajectory design

no code implementations1 Feb 2018 Dario Izzo, Christopher Sprague, Dharmesh Tailor

After providing a brief historical overview on the synergies between artificial intelligence research, in the areas of evolutionary computations and machine learning, and the optimal design of interplanetary trajectories, we propose and study the use of deep artificial neural networks to represent, on-board, the optimal guidance profile of an interplanetary mission.

BIG-bench Machine Learning Trajectory Planning

Multi-rendezvous Spacecraft Trajectory Optimization with Beam P-ACO

1 code implementation3 Apr 2017 Luís F. Simões, Dario Izzo, Evert Haasdijk, A. E. Eiben

The design of spacecraft trajectories for missions visiting multiple celestial bodies is here framed as a multi-objective bilevel optimization problem.

Bilevel Optimization

Differentiable Genetic Programming

no code implementations15 Nov 2016 Dario Izzo, Francesco Biscani, Alessio Mereta

We introduce the use of high order automatic differentiation, implemented via the algebra of truncated Taylor polynomials, in genetic programming.

Symbolic Regression

Real-time optimal control via Deep Neural Networks: study on landing problems

1 code implementation27 Oct 2016 Carlos Sánchez-Sánchez, Dario Izzo

Recent research on deep learning, a set of machine learning techniques able to learn deep architectures, has shown how robotic perception and action greatly benefits from these techniques.

Systems and Control

Persistent self-supervised learning principle: from stereo to monocular vision for obstacle avoidance

no code implementations25 Mar 2016 Kevin van Hecke, Guido de Croon, Laurens van der Maaten, Daniel Hennes, Dario Izzo

We study this persistent form of SSL in the context of a flying robot that has to avoid obstacles based on distance estimates from the visual cue of stereo vision.

Robotics

Designing Complex Interplanetary Trajectories for the Global Trajectory Optimization Competitions

1 code implementation3 Nov 2015 Dario Izzo, Daniel Hennes, Luís F. Simões, Marcus Märtens

The design of interplanetary trajectories often involves a preliminary search for options later refined/assembled into one final trajectory.

Space Physics

Revisiting Lambert's Problem

2 code implementations11 Mar 2014 Dario Izzo

The orbital boundary value problem, also known as Lambert Problem, is revisited.

Earth and Planetary Astrophysics

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