• DocumentCode
    2697729
  • Title

    Classification of Polarimetric SAR Images using the Degree of Polarization and the Co-Polarized Phase Difference

  • Author

    Oh, Yisok ; Chang, Geba

  • Author_Institution
    Dept. of Electron. Inf. & Commun. Eng., Hongik Univ., Seoul
  • Volume
    5
  • fYear
    2008
  • fDate
    7-11 July 2008
  • Abstract
    A new polarimetric SAR image classification technique based on the degree of polarization (DoP) and the co-polarized phase-difference (CPD) is presented in this paper. Since the DoP and the CPD of a scattered wave provide information on the randomness of the scattering and the type of scattering mechanisms, at first, the statistics of the DoP and CPD are examined with measured polarimetric SAR image data. Then, a DoP-CPD diagram with appropriate boundaries between six different classes is developed based on the SAR image. The classification results are compared with the existing Entropy-alpha diagram as well as the JPL-AirSAR polarimetric data. The technique may have capability to classify an SAR image into six major classes; a bare surface, a village, a crown-layer short vegetation canopy, a trunk-layer short vegetation canopy, a crown-layer forest, and a trunk-dominated forest.
  • Keywords
    atmospheric boundary layer; geophysical techniques; image classification; polarisation; radar polarimetry; remote sensing by radar; synthetic aperture radar; vegetation; AIRborne Synthetic Aperture Radar; CPD; DoP; DoP-CPD diagram; JPL-AirSAR data; bare surface; co-polarized phase-difference; crown-layer forest; crown-layer short vegetation canopy; degree of polarization; entropy-alpha diagram; image classification technique; polarimetric SAR image; scattering mechanism; synthetic aperture radar; trunk-dominated forest; trunk-layer short vegetation canopy; village; Covariance matrix; Entropy; Image classification; Information analysis; Matrices; Polarization; Scattering parameters; Statistics; Stokes parameters; Vegetation mapping; DoP-CPD diagram; Polarimetric SAR image classification; co-polarized phase difference; degree of polarization;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International
  • Conference_Location
    Boston, MA
  • Print_ISBN
    978-1-4244-2807-6
  • Electronic_ISBN
    978-1-4244-2808-3
  • Type

    conf

  • DOI
    10.1109/IGARSS.2008.4780103
  • Filename
    4780103