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| HAL : hal-00608735, version 1 |
| Fiche détaillée |  Récupérer au format |
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| 9th International Workshop on Electronics, Control, Modelling, Measurement and Signals (ECMS 2009), Mondragon : Espagne (2009) |
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| Cross-validation of blindly separated interstellar dust spectra |
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| Matthieu Puigt 1Olivier Berné 2 |
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| (2009) |
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| In this paper, we investigate the validation of Blind Source Separation (BSS) methods applied to interstellar dust hyperspectral data cubes. Since the original source signals are unknown, we cannot measure the separation accuracy by means of classical objective criteria. As a consequence, we here propose a cross-validation of the extracted spectra by applying to the measured data various BSS techniques based on different criteria. We show that, with all these methods, we obtain quite the same (physically relevant) estimated interstellar dust spectra. Moreover, we then derive a spatial structure of the emission of the chemical species, which is not used in the separation step and which is physically relevant. |
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| 1 : | Laboratoire Astrophysique de Toulouse-Tarbes (LATT) |
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CNRS : UMR5572 – INSU – Observatoire Midi-Pyrénées – Université Paul Sabatier [UPS] - Toulouse III |
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| 2 : | Centro de Astrobiologia |
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CSIC-Madrid – INTA |
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| 3 : | Centre d'étude spatiale des rayonnements (CESR) |
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CNRS : UMR5187 – Observatoire Midi-Pyrénées – INSU – Université Paul Sabatier [UPS] - Toulouse III |
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| Domaine | : | Informatique/Traitement du signal et de l'image Sciences de l'ingénieur/Traitement du signal et de l'image |
| hal-00608735, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00608735 | |
| oai:hal.archives-ouvertes.fr:hal-00608735 | |
| Contributeur : Matthieu Puigt | |
| Soumis le : Jeudi 14 Juillet 2011, 09:05:22 | |
| Dernière modification le : Jeudi 14 Juillet 2011, 09:05:22 | |
