IEEE Geoscience and Remote Sensing Society (GRSS), Bombay Chapter

Cordially invites you to

IEEE GRSS Technical Talk

OPTIMUM POLARIMETRIC SAR INFORMATION EXTRACTION IN SUPPORT OF KEY APPLICATIONS: PEATLAND MONITORING AND SHIP DETECTION

By
Dr. Ridha Touzi

Canada Centre for Remote Sensing Canada Centre for Mapping and Earth Observation
560 Rochester, Ottawa, Ont. K1A0E4
email: ridha.touzi@ccrs.nrcan.gc.ca

 

Date: 28th October 2017 (Saturday)
Time: 11:00 AM to 12:00 PM
Venue: CSRE Seminar Hall (1st Floor CSRE, IITB)

 

Abstract: The state of the art in the methodology developed for optimum polarimetric information extraction is reviewed. New polarimetric signatures are introduced for the presentation of target scattering variations with transmit antenna polarization in terms of independent polarization signatures. Optimization of the received intensity can be performed using the Touzi scattering decomposition. The latter is the only eigenvector based decomposition (EVBD) that permits the presentation of target scattering in terms of unique parameters independent of the basis of polarization. The Touzi EVBD leads to a unique scattering decomposition in contrast to the model-based target scattering decomposition (Freeman, Yamaguchi,…) which strongly depends on the a-priori scattering model adopted. Optimization of the scattered wave polarization signature is performed using the analytical method introduced by Touzi (1992, 2015). It is shown that the degree of polarization and the total scattered intensity optimization leads to key information complementary with the one provide by the Touzi target scattering decomposition. The scattered and received wave polarization optimization techniques above are used to demonstrate the added value of polarimetric C-band Radarsat 2 and L-band ALOS in key applications: 1) subarctic peatland and subsurface permafrost mapping and monitoring. 2) ship detection

IEEE GRSS Technical Talk by Dr. Ridha Touzi

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