NDLI: Coherence region shape extraction for vegetation parameter estimation in polarimetric SAR interferometry

Content Provider	IEEE Xplore Digital Library
Author	Flynn, T. Tabb, M. Carande, R.
Copyright Year	2002
Description	Author affiliation: Vexcel Corp., Boulder, CO, USA (Flynn, T.; Tabb, M.; Carande, R.)
Abstract	Polarimetric SAR interferometry (POLINSAR) provides volumetric information about electromagnetic scattering processes, whereas standard INSAR assumes that only surface scattering is present. Instead of a single complex interferometric coherence for each pixel, POLINSAR observes a polarization-dependent coherence function whose range is called the coherence region. To estimate canopy parameters, the shape of this region must be matched to predictions from scattering models. For computational efficiency, the region must be represented by a small number of samples. Current sampling methods find the stationary points of coherence magnitude or phase; it is questionable whether the coherence region can be characterized adequately with so few samples. We have developed an algorithm for sampling the outer boundary of the coherence region. We formulate the problem of finding the minimum and maximum real part of the coherence as an eigenvalue problem. The solutions specify two points on the boundary. Other points are found by applying a phase shift to the POLINSAR cross-correlation matrix. The mathematical literature shows that the coherence region is convex, and hence the algorithm rinds the entire boundary. We present a comparison of boundary sampling to standard methods on L-band POLINSAR data from the SIR-C platform. It is evident that boundary sampling describes the shape of the coherence region more thoroughly than other methods.
Sponsorship	IEEE IEEE Geosci. & Remote Sensing Soc. Canadian Remote Sensing Soc. Univ. Waterloo Natural Resources Canada (NRCan) Canadian Space Agency (CSA) Environ. Canada NASA Nat. Oceanic & Atmos. Adm. (NOAA) Office of Naval Res.(ONR) Nat. Space Dev. Agency of Japan (NASDA) Nat. Polar-orbiting Environ. Satellite Syst. (NPOESS)
Starting Page	2596
Ending Page	2598
File Size	338264
Page Count	3
File Format	PDF
ISBN	078037536X
DOI	10.1109/IGARSS.2002.1026712
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-06-24
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Shape Vegetation Parameter estimation Coherence Sampling methods Electromagnetic scattering Data mining Synthetic aperture radar interferometry Electromagnetic wave polarization Scattering parameters
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Interferometric Phase Estimation in Polarimetric SAR Interferometry

Multi-frequency polarimetric SAR interferometry for vegetation structure extraction

Polarimetric SAR interferometry for vegetable vertical structure parameters extraction

Multi-baseline polarimetric SAR interferometry for vegetation parameters estimation

Baseline analysis of Polarimetric SAR Interferometry

Recent advances in Polarimetric SAR Interferometry for forest parameter estimation

The synergy of SAR polarimetry and interferometry for forest parameters retrieval

Application of polarimetric synthetic aperture radar interferometry for land cover classification

Estimation of the Equivalent Number of Looks in Polarimetric SAR Imagery

Coherence region shape extraction for vegetation parameter estimation in polarimetric SAR interferometry

Similar Documents

Interferometric Phase Estimation in Polarimetric SAR Interferometry

Multi-frequency polarimetric SAR interferometry for vegetation structure extraction

Polarimetric SAR interferometry for vegetable vertical structure parameters extraction

Multi-baseline polarimetric SAR interferometry for vegetation parameters estimation

Baseline analysis of Polarimetric SAR Interferometry

Recent advances in Polarimetric SAR Interferometry for forest parameter estimation

The synergy of SAR polarimetry and interferometry for forest parameters retrieval

Application of polarimetric synthetic aperture radar interferometry for land cover classification

Estimation of the Equivalent Number of Looks in Polarimetric SAR Imagery

Coherence region shape extraction for vegetation parameter estimation in polarimetric SAR interferometry