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Proceedings Paper

Linear landmark extraction in SAR images with application to augmented integrity aero-navigation: an overview to a novel processing chain
Author(s): L. Fabbrini; M. Messina; M. Greco; G. Pinelli
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Paper Abstract

In the context of augmented integrity Inertial Navigation System (INS), recent technological developments have been focusing on landmark extraction from high-resolution synthetic aperture radar (SAR) images in order to retrieve aircraft position and attitude. The article puts forward a processing chain that can automatically detect linear landmarks on highresolution synthetic aperture radar (SAR) images and can be successfully exploited also in the context of augmented integrity INS. The processing chain uses constant false alarm rate (CFAR) edge detectors as the first step of the whole processing procedure. Our studies confirm that the ratio of averages (RoA) edge detector detects object boundaries more effectively than Student T-test and Wilcoxon-Mann-Whitney (WMW) test. Nevertheless, all these statistical edge detectors are sensitive to violation of the assumptions which underlie their theory. In addition to presenting a solution to the previous problem, we put forward a new post-processing algorithm useful to remove the main false alarms, to select the most probable edge position, to reconstruct broken edges and finally to vectorize them. SAR images from the “MSTAR clutter” dataset were used to prove the effectiveness of the proposed algorithms.

Paper Details

Date Published: 7 October 2011
PDF: 12 pages
Proc. SPIE 8008, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2011, 80081P (7 October 2011); doi: 10.1117/12.905022
Show Author Affiliations
L. Fabbrini, Univ. of Florence (Italy)
M. Messina, IDS-Ingegneria Dei Sistemi SpA (Italy)
M. Greco, IDS-Ingegneria Dei Sistemi SpA (Italy)
G. Pinelli, IDS-Ingegneria Dei Sistemi SpA (Italy)

Published in SPIE Proceedings Vol. 8008:
Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2011
Ryszard S. Romaniuk, Editor(s)

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