Ground topography estimation over forests using PolInSAR image by means of coherence set

Author

Zou, Bin ; Lu, Da ; Hongjun Cai ; Zhang, Ye

Author_Institution

Dept. of Inf. Eng., Harbin Inst. of Technol., Harbin, China

fYear

2011

fDate

11-14 Sept. 2011

Firstpage

2809

Lastpage

2812

Abstract

Polarimetric SAR Interferometry (PolInSAR) provides a useful tool for forestry parameters retrieval at L-band. Three-stage inversion process is a traditional way to retrieve these parameters, but it has several shortcomings while ground phase estimation is processed. In order to overcome these shortcomings, an algorithm of ground topography estimation using PolInSAR image by means of coherence set is proposed in this paper. The coherence region derived from numerical range is combined with RVoG model to obtain accurate estimation of ground topography. Simulated image and SIR-C image of forestry area are used to validate the proposed algorithm.

Keywords

feature extraction; forestry; geophysical image processing; geophysical techniques; image retrieval; radar interferometry; radar polarimetry; synthetic aperture radar; topography (Earth); L-band; PolInSAR image; SIR-C image; coherence set; feature estimation; forestry parameter retrieval; ground phase estimation; ground topography estimation; polarimetric SAR interferometry; three stage inversion process; Coherence; Eigenvalues and eigenfunctions; Estimation; Interferometry; L-band; Surfaces; Vegetation mapping; Polarimetric SAR Interferometry (PolInSAR); coherence set; ground topography estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing (ICIP), 2011 18th IEEE International Conference on

Conference_Location

Brussels

ISSN

1522-4880

Print_ISBN

978-1-4577-1304-0

Electronic_ISBN

1522-4880

Type

conf

DOI

10.1109/ICIP.2011.6116255

Filename

6116255