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Monitoring of Construction Activity by Change Detection on SAR Time Series Using Coherent Scatterers

Villamil Lopez, Carlos and Stilla, Uwe (2022) Monitoring of Construction Activity by Change Detection on SAR Time Series Using Coherent Scatterers. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 15, pp. 7499-7514. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/JSTARS.2022.3201480. ISSN 1939-1404.

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Official URL: https://ieeexplore.ieee.org/document/9866104

Abstract

In this article a novel SAR change detection (CD) method for the monitoring of man-made objects (MMO) is presented. Rather than looking for changes in SAR amplitude or the loss of coherence, changes are detected by the appearance and disappearance of the strong point scatterers present in MMO and often denoted as coherent scatterers (CSs). This enables the detection of changes involving MMO while ignoring changes to natural targets such as vegetation. These CSs are detected in each image and compared coherently across an image pair or a time series. When using a time series, the proposed method can categorize the changes according to their temporal behavior. An object-based change analysis step for identifying changes significantly larger than individual CSs is also introduced. The proposed approach is applied for the monitoring of construction activity using a time series of 49 TerraSAR-X images of the city of Munich.

Item URL in elib:https://elib.dlr.de/187988/
Document Type:Article
Title:Monitoring of Construction Activity by Change Detection on SAR Time Series Using Coherent Scatterers
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Villamil Lopez, CarlosCarlos.VillamilLopez (at) dlr.dehttps://orcid.org/0000-0002-6867-7689
Stilla, Uwestilla (at) tum.dehttps://orcid.org/0000-0002-1184-0924
Date:24 August 2022
Journal or Publication Title:IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:15
DOI :10.1109/JSTARS.2022.3201480
Page Range:pp. 7499-7514
Publisher:IEEE - Institute of Electrical and Electronics Engineers
ISSN:1939-1404
Status:Published
Keywords:synthetic aperture radar (SAR), time series, monitoring, change detection, coherent scatterers
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Security-relevant Earth Observation
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Reconnaissance and Security
Deposited By: Villamil Lopez, Carlos
Deposited On:25 Aug 2022 13:56
Last Modified:16 Sep 2022 09:24

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