A New Approach for DEM Generation Based on Polarimetric SAR Interferometry

Author

Tao, Xiong ; Jian, Yang ; Yingning, Peng

Author_Institution

Dept. of Electron. Eng., Tsinghua Univ., Beijing

fYear

2006

fDate

16-19 Oct. 2006

Firstpage

1

Lastpage

4

Abstract

In this paper, the polarimetric information is used to register the interferometric images and enhance the interferometric phase. The similarity parameter is employed to register the images. This approach is more robust than the traditional method. The combination of the best phase among three polarimetric channels can be used to improve the phase quality and reduce the residues. Then a new phase filter based on the weighted median filter is proposed. This filter is used to reduce the residues sufficiently and make phase unwrapping easily. Finally, a multi-path method is introduced to unwrap the phase

Keywords

digital elevation models; image registration; median filters; multipath channels; radar imaging; radar interferometry; radar polarimetry; remote sensing by radar; synthetic aperture radar; DEM; SAR; digital elevation model generation; interferometric image registration; multi path method; phase filter; polarimetric synthetic aperture radar; weighted median filter; Data mining; Filters; Fuses; Image registration; Interferometry; Noise generators; Noise reduction; Robustness; Scattering; Vegetation mapping; interferometry; polarimetric SAR;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar, 2006. CIE '06. International Conference on

Conference_Location

Shanghai

Print_ISBN

0-7803-9582-4

Electronic_ISBN

0-7803-9583-2

Type

conf

DOI

10.1109/ICR.2006.343292

Filename

4148398