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Communication dans un congrès

Aircraft Target Recognition using Copula Joint Statistical Model and Sparse Representation Based Classification

Ayoub Karine 1 Abdelmalek Toumi 2 Ali Khenchaf 3 Mohammed El Hassouni 1
2 Lab-STICC_ENSTAB_CID_TOMS
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
3 Lab-STICC_ENSTAB_MOM_PIM
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
Abstract : This paper proposes a new target recognition method for inverse synthetic aperture radar (ISAR) images. This method is based on joint statistical modeling of the complex wavelet coefficients for ISAR image characterization and the sparse representation based classification (SRC) for the recognition. To extract features from an ISAR image, we first transform it in the complex wavelet domain using the dual-tree complex wavelet transform (DT-CWT). Then, we compute magnitude information for each complex subband. After that, we propose a joint statistical model for magnitude distribution, that takes into account the dependences between different orientations and scales. To do so, we adopt the copula as a multivariate model thanks to its suitability to capture jointly the subband marginal distribution and the dependence structure. For the recognition step, we exploit SRC which recovers the test descriptor to classify over a given dictionary composed by the training descriptors. This method classifies the test sample as the class whose training samples can generate the minimum sparse representation error. Experimental results on ISAR images database show that using copula and sparse classifier improve significantly the recognition rates compared to classical models and classifiers.
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Communication dans un congrès
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https://hal-ensta-bretagne.archives-ouvertes.fr/hal-01833431
Contributeur : Marie Briec <>
Soumis le : lundi 9 juillet 2018 - 16:29:37
Dernière modification le : mercredi 24 juin 2020 - 16:19:52

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Ayoub Karine, Abdelmalek Toumi, Ali Khenchaf, Mohammed El Hassouni. Aircraft Target Recognition using Copula Joint Statistical Model and Sparse Representation Based Classification. IGARSS 2018, International Geoscience and Remote Sensing Symposium 2018, IEEE Geoscience and Remote Sensing Society, Jun 2018, Valencia, Spain. pp.3635-3638, ⟨10.1109/IGARSS.2018.8518668⟩. ⟨hal-01833431⟩

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