Monitoring Agricultural Fields Using an Optimisation of the Difference of Covariance Matrices for Polsar

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Title: Monitoring Agricultural Fields Using an Optimisation of the Difference of Covariance Matrices for Polsar
Authors: Silva, Cristian | Marino, Armando | Lopez-Sanchez, Juan M. | Cameron, Iain
Research Group/s: Señales, Sistemas y Telecomunicación
Center, Department or Service: Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad de Alicante. Instituto Universitario de Investigación Informática
Keywords: Agriculture | Polarimetry | Change detection | Synthetic aperture radar
Knowledge Area: Teoría de la Señal y Comunicaciones
Issue Date: 2018
Publisher: IEEE
Citation: IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 22-27 July 2018, 6619-6622. doi:10.1109/IGARSS.2018.8519267
Abstract: SAR polarimetry (PolSAR) can play an important role in monitoring agricultural fields both in terms of improving detection of specific plants conditions and providing physical information regarding the change. Such information can be used to help retrieving the phenological stage and eventually identifying stress conditions. In this work, a new change detection based on PolSAR data is first tested over time series of images acquired over agricultural fields. The methodology is based on the use of the normalised difference between covariance matrices acquired at two different instants. A diagonalisation of such matrix allows identifying the scattering mechanisms that suffer the largest change. The methodology is tested exploiting C-band quad-polarimetric RADARSAT-2 data over rice fields in Sevilla, South-West of Spain.
Sponsor: This research was partially supported by a mobility Scholarship from the Santander Bank, UK, and the Project EO4cultivar, led by Environment Systems Ltd and co-funded by the UK Space Agency. This work was partially supported by the Spanish Ministry of Economy, Industry and Competitiveness (MINECO), the State Agency of Research (AEI) and the European Funds for Regional Development (EFRD) under Project TEC2017-85244-C2-1-P.
URI: http://hdl.handle.net/10045/88288
ISBN: 978-1-5386-7150-4
DOI: 10.1109/IGARSS.2018.8519267
Language: eng
Type: info:eu-repo/semantics/conferenceObject
Rights: © 2018 IEEE
Peer Review: si
Publisher version: https://doi.org/10.1109/IGARSS.2018.8519267
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