Maximum a posteriori height estimation in InSAR imaging

Author

Ferraiuolo, G. ; Pascazio, V. ; Schirinzi, G.

Author_Institution

Dipt. di Ingegneria Elettronica e delle Telecomunicazioni, Universita di Napoli Federico II, Italy

Volume

3

fYear

2002

fDate

24-28 June 2002

Firstpage

1732

Abstract

A multi-frequencies maximum a posteriori (MAP) estimation of height profiles, from InSAR data, is presented in this paper. A quadratic MRF model is adopted to exploit a-priori information about the unknown image; the hyperparameter estimation, performed on a local basis, provides a powerful representation model for realistic height surfaces. The resulting MAP estimation is efficiently performed by a Metropolis version of the simulated annealing algorithm, and is able to reconstruct very discontinuous profiles.

Keywords

geophysical signal processing; geophysical techniques; radar imaging; remote sensing by radar; synthetic aperture radar; terrain mapping; topography (Earth); InSAR; Metropolis version; SAR; discontinuous profiles; geophysical measurement technique; height profiles; hyperparameter estimation; land surface topography; local basis; maximum a posteriori height estimation; multifrequencies; quadratic MRF model; simulated annealing algorithm; synthetic aperture radar; terrain mapping; topographic mapping; Decorrelation; Earth; Image reconstruction; Pixel; Power system modeling; Signal mapping; Simulated annealing; Surface reconstruction; Synthetic aperture radar interferometry; Telecommunications;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2002. IGARSS '02. 2002 IEEE International

Print_ISBN

0-7803-7536-X

Type

conf

DOI

10.1109/IGARSS.2002.1026236

Filename

1026236