Now showing items 21-33 of 33

    • Polarimetric optimization for DInSAR pixel selection with ground-based SAR 

      Iglesias González, Rubén; Fabregas Canovas, Francisco Javier; Aguasca Solé, Alberto; López Martínez, Carlos; Alonso González, Alberto; Mallorquí Franquet, Jordi Joan (IEEE, 2012)
      Conference report
      Restricted access - publisher's policy
      In this paper, the study of polarimetric optimization techniques for Differential SAR Interferometry (DInSAR) applications is analyzed. This work has been carried out in the framework of deformation map retrieval on ...
    • Polarimetric SAR time series change analysis over agricultural areas 

      Alonso González, Alberto; López Martínez, Carlos; Papathanassiou, Kostantinos; Hajnsek, Irena (Institute of Electrical and Electronics Engineers (IEEE), 2020-10)
      Article
      Open Access
      This article proposes a change detection and analysis technique for monitoring the phenological development of agricultural vegetation by means of multitemporal Polarimetric Synthetic Aperture Radar (PolSAR) acquisitions. ...
    • PolInSAR temporal series analysis with Binary Partition Trees 

      Alonso González, Alberto; López Martínez, Carlos (VDE Conference Publications, 2014)
      Conference lecture
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      This work is focused on the exploitation of PolSAR and PolInSAR temporal series datasets, in the context of change detection and characterization. Instead of a classical pixel-based approach, a Binary Partition Tree (BPT) ...
    • PolSAR time series processing with Binary Partition Trees 

      Alonso González, Alberto; López Martínez, Carlos; Salembier Clairon, Philippe Jean (Institute of Electrical and Electronics Engineers (IEEE), 2014-06-01)
      Article
      Restricted access - publisher's policy
      This paper deals with the processing of polarimetric synthetic aperture radar (SAR) time series. Different approaches to deal with the temporal dimension of the data are considered, which are derived from different target ...
    • Polsar time series temporal change detection and analysis with binary partition trees 

      Alonso González, Alberto; López Martínez, Carlos (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Conference report
      Restricted access - publisher's policy
      In this paper the exploitation of PolSAR temporal series datasets is presentedin the context of change detection and characterization. A Binary Partition Tree (BPT) data structure is employed in order to extract homogeneous ...
    • Processing multidimensional SAR and hyperspectral images with binary partition tree 

      Alonso González, Alberto; Valero, Silvia; Chanussot, Jocelyn; López Martínez, Carlos; Salembier Clairon, Philippe Jean (2013-03)
      Article
      Restricted access - publisher's policy
      The current increase of spatial as well as spectral resolutions of modern remote sensing sensors represents a real opportunity for many prac tical applications but also generates important challenges in terms of image ...
    • Space-Time PolSAR data temporal series processing based on binary partition trees 

      Alonso González, Alberto; López Martínez, Carlos (2012)
      Conference report
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      A processing technique to exploit temporal series of coregistered Polarimetric Synthetic Aperture Radar (PolSAR) images is presented in this paper. This technique will be based on a region-based and multi-scale data ...
    • Statistical study of the H/A/Alpha decomposition based on a perturbation analysis of the coherency matrix 

      López Martínez, Carlos; Alonso González, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Conference report
      Restricted access - publisher's policy
      The eigendecomposition of the coherency matrix, as well as the Entropy, Anisotropy and mean Alpha angle are crucial for the physical understanding of the scattered echo in SAR polarimetry. This contribution considers a ...
    • Study of the speckle noise effects over the eigen decomposition of polarimetric SAR data: a review 

      López Martínez, Carlos; Alonso González, Alberto; Fabregas Canovas, Francisco Javier (European Space Agency (ESA), 2013)
      Conference report
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      This paper is focused on considering the effects of speckle noise on the eigen decomposition of the co- herency matrix. Based on a perturbation analysis of the matrix, it is possible to obtain an analytical expression ...
    • Target characterization by means of PolInSAR temporal evolution 

      Alonso González, Alberto; López Martínez, Carlos (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Restricted access - publisher's policy
      This work focuses on the exploitation of PolSAR and PolInSAR temporal series datasets in the context of change detection and characterization. Instead of a classical pixel-based approach, a Binary Partition Tree (BPT) data ...
    • Temporal PolSAR image series exploitation with binary partition trees 

      Alonso González, Alberto; López Martínez, Carlos; Salembier Clairon, Philippe Jean (IEEE, 2012)
      Conference report
      Restricted access - publisher's policy
      In this paper, the processing of temporal PolSAR image series is addressed through a region-based and multi-scale data representation, the Binary Partition Tree (BPT). This structure contains useful information related ...
    • Underlying topography estimation and separation of scattering contributions over forests based on polInSAR data 

      López Martínez, Carlos; Alonso González, Alberto; Fabregas Canovas, Francisco Javier; Papathanassiou, Kostantinos (2011)
      Conference report
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      The work detailed in this paper analyzes the topographic phase retrieval process on forested areas by means of Polarimetric Interferometric SAR data. On the basis of the Random Volume over Ground scattering model, an ...
    • Variable local weight filtering for PolSAR data speckle noise reduction 

      Alonso González, Alberto; López Martínez, Carlos; Salembier Clairon, Philippe Jean (IEEE, 2012)
      Conference report
      Restricted access - publisher's policy
      This paper presents a Polarimetric SAR data speckle filtering technique, based on a combined filtering in the spatial and polarimetric domains. It is based on a bilateral filtering employing distance measures over these ...