Improving SAR-based flood detection in arid regions using texture features

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Authors

  • Dk Ritushree
  • Shagun Garg
  • Antara Dasgupta
  • Sandro Martinis
  • Sivasakthy Selvakumaran
  • Mahdi Motagh

External Research Organisations

  • Helmholtz Centre Potsdam - German Research Centre for Geosciences
  • Osnabrück University
  • German Aerospace Center (DLR)
  • University of Cambridge
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Details

Original languageEnglish
Title of host publication2023 International Conference on Machine Intelligence for GeoAnalytics and Remote Sensing, MIGARS 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (electronic)9798350345421
ISBN (print)979-8-3503-4543-8
Publication statusPublished - 2023
Event2023 International Conference on Machine Intelligence for GeoAnalytics and Remote Sensing, MIGARS 2023 - Hyderabad, India
Duration: 27 Jan 202329 Jan 2023

Abstract

Flood monitoring in arid regions is challenging using Synthetic Aperture Radar (SAR) due to the similar backscatter of water and dry sand in surrounding areas. Since textural information is abundant in SAR images, this study investigates the added value of texture in SAR-based flood detection by providing it as auxiliary information for flood delineation. Results show that texture enhanced SAR images in VH polarization substantially underpredicts the flooded area, so adding texture does not improve the classification accuracy. However, using both polarization (VV and VH) produce ∼26% higher overall accuracy for flood detection in arid regions.

Keywords

    Flood mapping, Random Forest, SAR, texture

ASJC Scopus subject areas

Cite this

Improving SAR-based flood detection in arid regions using texture features. / Ritushree, Dk; Garg, Shagun; Dasgupta, Antara et al.
2023 International Conference on Machine Intelligence for GeoAnalytics and Remote Sensing, MIGARS 2023. Institute of Electrical and Electronics Engineers Inc., 2023.

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Ritushree, D, Garg, S, Dasgupta, A, Martinis, S, Selvakumaran, S & Motagh, M 2023, Improving SAR-based flood detection in arid regions using texture features. in 2023 International Conference on Machine Intelligence for GeoAnalytics and Remote Sensing, MIGARS 2023. Institute of Electrical and Electronics Engineers Inc., 2023 International Conference on Machine Intelligence for GeoAnalytics and Remote Sensing, MIGARS 2023, Hyderabad, India, 27 Jan 2023. https://doi.org/10.1109/MIGARS57353.2023.10064526
Ritushree, D., Garg, S., Dasgupta, A., Martinis, S., Selvakumaran, S., & Motagh, M. (2023). Improving SAR-based flood detection in arid regions using texture features. In 2023 International Conference on Machine Intelligence for GeoAnalytics and Remote Sensing, MIGARS 2023 Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MIGARS57353.2023.10064526
Ritushree D, Garg S, Dasgupta A, Martinis S, Selvakumaran S, Motagh M. Improving SAR-based flood detection in arid regions using texture features. In 2023 International Conference on Machine Intelligence for GeoAnalytics and Remote Sensing, MIGARS 2023. Institute of Electrical and Electronics Engineers Inc. 2023 doi: 10.1109/MIGARS57353.2023.10064526
Ritushree, Dk ; Garg, Shagun ; Dasgupta, Antara et al. / Improving SAR-based flood detection in arid regions using texture features. 2023 International Conference on Machine Intelligence for GeoAnalytics and Remote Sensing, MIGARS 2023. Institute of Electrical and Electronics Engineers Inc., 2023.
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title = "Improving SAR-based flood detection in arid regions using texture features",
abstract = "Flood monitoring in arid regions is challenging using Synthetic Aperture Radar (SAR) due to the similar backscatter of water and dry sand in surrounding areas. Since textural information is abundant in SAR images, this study investigates the added value of texture in SAR-based flood detection by providing it as auxiliary information for flood delineation. Results show that texture enhanced SAR images in VH polarization substantially underpredicts the flooded area, so adding texture does not improve the classification accuracy. However, using both polarization (VV and VH) produce ∼26% higher overall accuracy for flood detection in arid regions.",
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author = "Dk Ritushree and Shagun Garg and Antara Dasgupta and Sandro Martinis and Sivasakthy Selvakumaran and Mahdi Motagh",
note = "Funding Information: ACKNOWLEDGMENT This work was supported by the Helmholtz project AI for Near-Real Time Satellite-based Flood Response (AI4Flood), which is a joint collaboration between the German Research Center for Geosciences (GFZ) and German Aerospace Center (DLR) and EPSRC Centre for Doctoral Training in Future ; 2023 International Conference on Machine Intelligence for GeoAnalytics and Remote Sensing, MIGARS 2023 ; Conference date: 27-01-2023 Through 29-01-2023",
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AU - Ritushree, Dk

AU - Garg, Shagun

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AU - Martinis, Sandro

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AU - Motagh, Mahdi

N1 - Funding Information: ACKNOWLEDGMENT This work was supported by the Helmholtz project AI for Near-Real Time Satellite-based Flood Response (AI4Flood), which is a joint collaboration between the German Research Center for Geosciences (GFZ) and German Aerospace Center (DLR) and EPSRC Centre for Doctoral Training in Future

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AB - Flood monitoring in arid regions is challenging using Synthetic Aperture Radar (SAR) due to the similar backscatter of water and dry sand in surrounding areas. Since textural information is abundant in SAR images, this study investigates the added value of texture in SAR-based flood detection by providing it as auxiliary information for flood delineation. Results show that texture enhanced SAR images in VH polarization substantially underpredicts the flooded area, so adding texture does not improve the classification accuracy. However, using both polarization (VV and VH) produce ∼26% higher overall accuracy for flood detection in arid regions.

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