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Multi-Resolution Stereophotoclinometry by Deformation, a New 3D Shape Reconstruction Method Applied to ROSETTA/OSIRIS Images

Capanna, C. and Jorda, L. and Gesquiere, G. and Gaskell, R. and Groussin, O. and Gutierrez, P. and Hviid, S. and Lamy, P. and Preusker, Frank and Rodionov, S. and Scholten, F. and Vibert, D. (2014) Multi-Resolution Stereophotoclinometry by Deformation, a New 3D Shape Reconstruction Method Applied to ROSETTA/OSIRIS Images. In: AGU Fall Meeting 2014. AGU Fall Meeting 2014, 15.-19. Dez. 2014, San Francisco, California, USA.

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Official URL: https://agu.confex.com/agu/fm14/meetingapp.cgi#Paper/21936


We developed a new 3D shape reconstruction method which combines stereo, photoclinometry and the deformation of a triangular mesh describing the surface of the object. The method deforms the mesh - initially a sphere - until the set of synthetic images, created from the mesh (Jorda et al., SPIE 2010) match the observed one. Stereo control points can be used as a constraint in the deformation of the mesh, but it is not required at low resolutions. This new technique has been applied to images of the nucleus of comet 67P/Churyumov-Gerasimenko acquired by the OSIRIS instrument aboard the Rosetta spacecraft. The technique allowed to reconstruct the shape of the nucleus and to retrieve its rotational parameters from low-resolution images obtained with the narrow-angle camera of OSIRIS in mid-July 2014, when stereo-based techniques were still inapplicable. This model called "SHAP1" has been delivered to ESA and to the lander team in July. The technique has also been applied to higher-resolution images of the nucleus later on, using the stereo information as a constraint. A comparison of the reconstructed global and local models with those retrieved with other techniques, such as stereophotoclinometry (Gaskell et al., MPS 2008) and stereophotogrammetry (Preusker et al., PSS 2012) will be presented.

Item URL in elib:https://elib.dlr.de/94246/
Document Type:Conference or Workshop Item (Poster)
Title:Multi-Resolution Stereophotoclinometry by Deformation, a New 3D Shape Reconstruction Method Applied to ROSETTA/OSIRIS Images
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Capanna, C.Laboratoire d'Astrophysique de MarseilleUNSPECIFIED
Jorda, L.Laboratoire d'Astrophysique de MarseilleUNSPECIFIED
Gesquiere, G.Universite Lumiere, CNRSUNSPECIFIED
Gaskell, R.PSI, Tucson, ArizonaUNSPECIFIED
Groussin, O.Lab. d'Astrophysique de Marseille, FranceUNSPECIFIED
Gutierrez, P.IAA-CSIC, Granada, SpainUNSPECIFIED
Hviid, S.stubbe.hviid (at) dlr.deUNSPECIFIED
Lamy, P.Laboratoire d'Astrophysique MarseilleUNSPECIFIED
Preusker, Frankfrank.preusker (at) dlr.deUNSPECIFIED
Rodionov, S.Laboratoire d'Astrophysique de MarseilleUNSPECIFIED
Scholten, F.frank.scholten (at) dlr.deUNSPECIFIED
Vibert, D.Laboratoire d'Astrophysique de MarseilleUNSPECIFIED
Date:December 2014
Journal or Publication Title:AGU Fall Meeting 2014
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Stereophotoclinometry, Rosetta, OSIRIS, Comet
Event Title:AGU Fall Meeting 2014
Event Location:San Francisco, California, USA
Event Type:international Conference
Event Dates:15.-19. Dez. 2014
Organizer:American Geophysical Union
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Project ROSETTA Instruments
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research
Deposited By: Scholten, Dipl.-Ing. Frank
Deposited On:07 Jan 2015 09:48
Last Modified:01 Dec 2018 19:51

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