Unsupervised optimal fuzzy clustering and Markov segmentation of polarimetric imaging

Safwan El Assad; Ali Saad; Dominique Barba

doi:10.1117/12.262691

17 December 1996 Unsupervised optimal fuzzy clustering and Markov segmentation of polarimetric imaging

Safwan El Assad, Ali Saad, Dominique Barba

Proceedings Volume 2958, Microwave Sensing and Synthetic Aperture Radar; (1996) https://doi.org/10.1117/12.262691
Event: Satellite Remote Sensing III, 1996, Taormina, Italy

Abstract

This paper presents a method for unsupervised segmentation of polarimetric SAR data into classes of homogeneous microwave backscatter characteristics. Clustering of polarimetric backscatter are obtained either by the CMF-NSO or be SEM algorithm. These algorithms carry out the classification without a priori assumptions on the number of classes in the data set. Assessment of cluster validity is based on performance measures using hypervolume V or CS function criteria. The later measures the overall average compactness and separation of a fuzzy-partition. The CMF-NSO algorithm performs well in situations of large variability of cluster shapes and densities. Given the clusters of polarimetric backscatter, the entire image is segmented using a MAP estimation. Implementation of the MAP technique is accomplished by an ICM algorithm. Results, using fully polarimetric SAR forest data, obtained by the CMF-NSO following by the ICM algorithm with a K-distribution model are quite satisfactory.

Citation Download Citation

Safwan El Assad, Ali Saad, and Dominique Barba "Unsupervised optimal fuzzy clustering and Markov segmentation of polarimetric imaging", Proc. SPIE 2958, Microwave Sensing and Synthetic Aperture Radar, (17 December 1996); https://doi.org/10.1117/12.262691

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
12 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Polarimetry

Image segmentation

Data modeling

Detection and tracking algorithms

Fuzzy logic

Synthetic aperture radar

Backscatter

Show All Keywords

Keywords/Phrases

Search In:

Publication Years