Perception fields: analysing distributions of optical features as a proximity navigation tool for autonomous probes around asteroids

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dc.contributor.authorDi Fraia, Marco Zaccaria
dc.contributor.authorFeetham, Luke
dc.contributor.authorFelicetti, Leonard
dc.contributor.authorSanchez, Joan-Pau
dc.contributor.authorChermak, Lounis
dc.date.accessioned2021-09-02T18:34:17Z
dc.date.available2021-09-02T18:34:17Z
dc.date.issued2021-08-19
dc.description.abstractThis paper suggests a new way of interpreting visual information perceived by visible cameras in the proximity of small celestial bodies. At close ranges, camera-based perception processes generally rely on computational constructs known as features. Our hypothesis is that trends in the quantity of available optical features can be correlated to variations in the angular distance from the source of illumination. Indeed, the discussed approach is based on treating properties related to these detected optical features as readings of a field - the perception fields of the title, assumed induced by the coupling of the environmental conditions and the state of the sensing device. The extreme spectrum of shapes, surface properties and gravity fields of small celestial bodies heavily affects visual proximity operational procedures. Therefore, self-contained ancillary tools providing context and an evaluation of estimators' performance while using the least number of priors are extremely significant in these conditions. This preliminary study presents an analysis of the occurrences of optical feature observed around two asteroids, 101955 Bennu and (8567) 1996 HW1 in visual data simulated within Blender, a computer graphics engine. The comparison of three different feature detectors showed distinctive trends in the distribution of the detected optical features, directly correlated to the spacecraft-target-Sun angle, confirming our hypothesis.en_UK
dc.identifier.citationDi Fraia MZ, Feetham L, Felicetti L, et al., (2021) Perception fields: analysing distributions of optical features as a proximity navigation tool for autonomous probes around asteroids. In: 2021 IEEE 8th International Workshop on Metrology for AeroSpace (MetroAeroSpace), 23-25 June 2021, Naples, Italy, (Virtual Event), pp. 704-708en_UK
dc.identifier.isbn978-1-7281-7557-7
dc.identifier.issn2575-7490
dc.identifier.urihttps://doi.org/0.1109/MetroAeroSpace51421.2021.9511769
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/17054
dc.language.isoenen_UK
dc.publisherIEEEen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectOptical Navigationen_UK
dc.subjectSmall Celestial Bodiesen_UK
dc.subjectSpace Systemsen_UK
dc.subjectPerceptionen_UK
dc.subjectFeature Detectionen_UK
dc.titlePerception fields: analysing distributions of optical features as a proximity navigation tool for autonomous probes around asteroidsen_UK
dc.typeConference paperen_UK

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