The Open UniversitySkip to content
 

Statistical tests for a ship detector based on the Polarimetric Notch Filter

Marino, Armando and Hajnsek, Irena (2015). Statistical tests for a ship detector based on the Polarimetric Notch Filter. IEEE Transactions on Geoscience and Remote Sensing, 53(8) pp. 4578–4595.

Full text available as:
[img] PDF (Accepted Manuscript) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (3MB)
DOI (Digital Object Identifier) Link: https://doi.org/10.1109/TGRS.2015.2402312
Google Scholar: Look up in Google Scholar

Abstract

Ship detection is an important topic in remote sensing and Synthetic Aperture Radar has a valuable contribution, allowing detection at night time and with almost any weather conditions. Additionally, polarimetry can play a significant role considering its capability to discriminate between different targets. Recently, a new ship detector exploiting polarimetric information was developed, namely the Geometrical Perturbation Polarimetric Notch Filter (GP-PNF). This work is focused on devising two statistical tests for the GP-PNF. The latter allow an automatic and adaptive selection of the detector threshold. Initially, the probability density function (pdf) of the detector is analytically derived. Finally, the Neyman-Pearson (NP) lemma is exploited to set the threshold calculating probabilities using the clutter pdf (i.e. a Constant False Alarm Rate, CFAR) and a likelihood ratio (LR).

The goodness of fit of the clutter pdf is tested with four real SAR datasets acquired by the RADARSAT-2 and the TanDEM-X satellites. The former images are quad-polarimetric, while the latter are dual-polarimetric HH/VV. The data are accompanied by the Automatic Identification System (AIS) location of vessels, which facilitates the validation of the detection masks. It can be observed that the pdf's fit the data histograms and they pass the two sample Kolmogorov-Smirnov and χ2 tests.

Item Type: Journal Item
Copyright Holders: 2015 IEEE
ISSN: 0196-2892
Keywords: polarimetry; ship detection; synthetic aperture radar (SAR)
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 43596
Depositing User: Armando Marino
Date Deposited: 01 Jul 2015 08:51
Last Modified: 30 Apr 2017 16:20
URI: http://oro.open.ac.uk/id/eprint/43596
Share this page:

Altmetrics

Download history for this item

These details should be considered as only a guide to the number of downloads performed manually. Algorithmic methods have been applied in an attempt to remove automated downloads from the displayed statistics but no guarantee can be made as to the accuracy of the figures.

Actions (login may be required)

Policies | Disclaimer

© The Open University   contact the OU