HERA Centroiding Image Processing Algorithm Based on the Normalised Correlation with a Lambertian Sphere

Stancu Adrian, Marcos Rodrigálvarez, Andrea Pellacani, Ángel Aguado, Aída Barahona, Francesco Pace, Paul Băjănaru, Víctor Villa, Jesús Gil-Fernández

2024

Abstract

HERA is the spacecraft built by the European Space Agency (ESA) to visit and characterise the Didymos binary asteroid system after the impact performed by the NASA Double Asteroid Redirection Test (DART) mission. A visual-based Guidance Navigation and Control (GNC) system is developed for HERA to ensure safe ground, semi-autonomous and autonomous navigation around Didymos. For a better characterisation of the asteroids after DART post impact a close approach is foreseen. To ensure autonomous navigation during the close approach a visual-based GNC solution is developed by GMV, where dedicated image processing algorithms are implemented. Three main image processing algorithms are proposed to be used based on the distance of HERA spacecraft with respect to the Didymos system: normalised correlation with Lambertian sphere, centre of brightness with masking and feature tracking. This paper will briefly introduce the HERA mission and GNC, focusing more on the normalised correlation with a Lambertian sphere. Synthetic images generated based on Didymos (the main asteroid) and Dimorphos (the moon) are used for representative simulations. Performances are reported from a functional point of view until software (SW) implementation.

Paper Citation

in Harvard Style

Adrian S., Rodrigálvarez M., Pellacani A., Aguado Á., Barahona A., Pace F., Băjănaru P., Villa V. and Gil-Fernández J. (2024). HERA Centroiding Image Processing Algorithm Based on the Normalised Correlation with a Lambertian Sphere. In Proceedings of the 21st International Conference on Informatics in Control, Automation and Robotics - Volume 2: ICINCO; ISBN 978-989-758-717-7, SciTePress, pages 109-116. DOI: 10.5220/0012899200003822

in Bibtex Style

@conference{icinco24,
author={Stancu Adrian and Marcos Rodrigálvarez and Andrea Pellacani and Ángel Aguado and Aída Barahona and Francesco Pace and Paul Băjănaru and Víctor Villa and Jesús Gil-Fernández},
title={HERA Centroiding Image Processing Algorithm Based on the Normalised Correlation with a Lambertian Sphere},
booktitle={Proceedings of the 21st International Conference on Informatics in Control, Automation and Robotics - Volume 2: ICINCO},
year={2024},
pages={109-116},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0012899200003822},
isbn={978-989-758-717-7},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 21st International Conference on Informatics in Control, Automation and Robotics - Volume 2: ICINCO
TI - HERA Centroiding Image Processing Algorithm Based on the Normalised Correlation with a Lambertian Sphere
SN - 978-989-758-717-7
AU - Adrian S.
AU - Rodrigálvarez M.
AU - Pellacani A.
AU - Aguado Á.
AU - Barahona A.
AU - Pace F.
AU - Băjănaru P.
AU - Villa V.
AU - Gil-Fernández J.
PY - 2024
SP - 109
EP - 116
DO - 10.5220/0012899200003822
PB - SciTePress