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Wavelength-Resolution SAR Ground Scene Prediction Based on Image Stack
Universidade Federal de Pernambuco, BRA.
Universidade Federal do Pampa, BRA; .
Blekinge Institute of Technology, Faculty of Engineering, Department of Mathematics and Natural Sciences.ORCID iD: 0000-0002-6643-312x
Blekinge Institute of Technology, Faculty of Engineering, Department of Mathematics and Natural Sciences.
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2020 (English)In: Sensors, ISSN 1424-8220, E-ISSN 1424-8220, Vol. 20, no 7Article in journal (Refereed) Published
Abstract [en]

This paper presents five different statistical methods for ground scene prediction (GSP) in wavelength-resolution synthetic aperture radar (SAR) images. The GSP image can be used as a reference image in a change detection algorithm yielding a high probability of detection and low false alarm rate. The predictions are based on image stacks, which are composed of images from the same scene acquired at different instants with the same flight geometry. The considered methods for obtaining the ground scene prediction include (i) autoregressive models; (ii) trimmed mean; (iii) median; (iv) intensity mean; and (v) mean. It is expected that the predicted image presents the true ground scene without change and preserves the ground backscattering pattern. The study indicates that the the median method provided the most accurate representation of the true ground. To show the applicability of the GSP, a change detection algorithm was considered using the median ground scene as a reference image. As a result, the median method displayed the probability of detection of 97 % and a false alarm rate of 0 . 11 / km 2 , when considering military vehicles concealed in a forest.

Place, publisher, year, edition, pages
NLM (Medline) , 2020. Vol. 20, no 7
Keywords [en]
CARABAS II, ground scene prediction, image stack, multi-pass, SAR images, army, article, detection algorithm, forest, geometry, prediction, probability, telecommunication
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:bth-19389DOI: 10.3390/s20072008Scopus ID: 2-s2.0-85083022547OAI: oai:DiVA.org:bth-19389DiVA, id: diva2:1424462
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Open access

Available from: 2020-04-17 Created: 2020-04-17 Last updated: 2020-05-04Bibliographically approved

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Pettersson, MatsVu, Viet Thuy

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