Terrain topographic inversion using single-pass polarimetric SAR image data

Ya-Qiu Jin; Lin Luo

doi:10.1117/12.466087

30 April 2003 Terrain topographic inversion using single-pass polarimetric SAR image data

Ya-Qiu Jin, Lin Luo

Proceedings Volume 4894, Microwave Remote Sensing of the Atmosphere and Environment III; (2003) https://doi.org/10.1117/12.466087
Event: Third International Asia-Pacific Environmental Remote Sensing Remote Sensing of the Atmosphere, Ocean, Environment, and Space, 2002, Hangzhou, China

Abstract

It has been studied that the shift of polarization orientation angle ψ at the maximum of co-polarized or cross-polarized back-scattering signature can be converted to the surface slopes. It is then utilized to generate the digital elevation mapping (DEM) and terrain topography using two-pass fully polarimetric SAR or interferometric SAR (INSAR) image data. This paper, using the Mueller matrix solution, newly derives the ψ shift as a function of three Stokes parameters, I_vs, I_hs, U_s, which are measured by polarimetric SAR image data. Using the Euler angles transformation, the orientation angle ψ is related to both the range and azimuth angles of the tilted surface and radar viewing geometry. When only a single-pass SAR data is available, the adaptive thresholding method and image morphological thinning algorithm for linear textures are proposed to first determine the azimuth angle. Then, making use of full multi-grid algorithm, both the range and azimuth angles are utilized to solve the Poisson equation of DEM to produce the terrain topography.

Citation Download Citation

Ya-Qiu Jin and Lin Luo "Terrain topographic inversion using single-pass polarimetric SAR image data", Proc. SPIE 4894, Microwave Remote Sensing of the Atmosphere and Environment III, (30 April 2003); https://doi.org/10.1117/12.466087

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KEYWORDS

Synthetic aperture radar

Polarimetry

Scattering

Interferometric synthetic aperture radar

Polarization

Image processing

Associative arrays

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