1. Home page
  2. Search

Multilevel hierarchical segmentation method for polarimetric SAR data based on scattering behaviour and histograms

This item is provided by the institution :
National Technical University of Athens   

Repository :
Digital Library of National Technical University of Athens | Dspace@NTUA   

see the original item page
in the repository's web site and access all digital files if the item*



Multilevel hierarchical segmentation method for polarimetric SAR data based on scattering behaviour and histograms (EN)
Dabboor, M (EN)
Karathanassi, V (EN)
Braun, A (EN)
journalArticle (EN)
2014-03-01T01:33:46Z
2010 (EN)
One of the main applications of polarimetric synthetic aperture radar (POLSAR) is the classification of different land cover. Classification of polarimetric SAR data can be pixel-based or segment-based. Various segmentation methods for polarimetric SAR data, such as region growing and split-merge, have been proposed recently. This paper proposes a new multilevel divisive hierarchical segmentation methodology based on the separation of the scattering mechanism space produced by polarimetric SAR decomposition methods. This methodology is segment specific, i.e., several segmentation levels can be created for segments selected by the user. In the first and second levels, segmentation is performed based on the dominant scattering mechanism and the second most significant scattering mechanism. In the subsequent levels, data are further segmented using a histogram-based segmentation algorithm. The methodology was applied to two datasets based on Pauli and Freeman-Durden analysis images. Three segmentation levels are implemented and compared with segmentation results based on the k-means clustering. Advanced Land Observing Satellite (ALOS) full polarimetric SAR data are used for a study area located in the southwest of the United Kingdom. The proposed methodology leads to promising results and can be adjusted to user needs and existing knowledge of the target area. © 2010 CASI. (EN)
Remote Sensing (EN)
Segmentation methods (EN)
United kingdom (EN)
Polarimetric SAR (EN)
Polarimeters (EN)
Region growing (EN)
Polarographic analysis (EN)
Statistical methods (EN)
Land cover (EN)
Graphic methods (EN)
Hierarchical segmentation (EN)
Advanced land observing satellites (EN)
Polarimetric SAR data (EN)
Segmentation results (EN)
Analysis images (EN)
Decomposition methods (EN)
Scattering mechanisms (EN)
Synthetic aperture radar (EN)
Segmentation levels (EN)
User need (EN)
Scattering (EN)
Imaging systems (EN)
Second level (EN)
Study areas (EN)
K-means clustering (EN)
Polarimetric synthetic aperture radars (EN)
Image segmentation (EN)
Segment-based (EN)
Data sets (EN)
Segmentation algorithms (EN)
Canadian Journal of Remote Sensing (EN)
English
CANADIAN AERONAUTICS SPACE INST (EN)
National Technical University of Athens
Digital Library of National Technical University of Athens | Dspace@NTUA
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά



*Institutions are responsible for keeping their URLs functional (digital file, item page in repository site)