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Title:
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Exploitation of the additive component of the polarimetric noise model for speckle filtering
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Author:
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Foucher, Samuel; Farage, Grégory; López Martínez, Carlos
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció |
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Abstract:
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Ratio filters for speckle noise reduction in SAR imagery are recursive filters where the image structure is iteratively recovered
from an initial oversmoothed image. We show that the MBPolSAR filter could be interepreted as a ratio filter applied to the off-diagonal terms of the covariance/coherency matix. From this observation, we propose a new polarimetric ratio filter allowing us to recover the image structure from all the terms of the covariance matrix. In addition, we briefly look at how the additive noise component could also be exploited for the image structure extraction. Filtering results on both simulated and real PolSAR images are shown. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Radar
-Synthetic aperture radar
-PolSAR
-Radar d'obertura sintètica |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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