Cited by 8Remote-Sensing Image ClassificationSatellite Image Processing and PhotogrammetryRemote Sensing in Agriculture

Satellite On-Board Change Detection via Auto-Associative Neural Networks

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Guerrisi, Giorgia, Del Frate, Fabio, Schiavon, Giovanni·2022·Remote Sensing

Abstract

The increase in remote sensing satellite imagery with high spatial and temporal resolutions has enabled the development of a wide variety of applications for Earth observation and monitoring. At the same time, it requires new techniques that are able to manage the amount of data stored and transmitted to the ground. Advanced techniques for on-board data processing answer this problem, offering the possibility to select only the data of interest for a specific application or to extract specific information from data. However, the computational resources that exist on-board are limited compared to the ground segment availability. Alternatively, in applications such as change detection, only images containing changes are useful and worth being stored and sent to the ground. In this paper, we propose a change detection scheme that could be run on-board. It relies on a feature-based representation of the acquired images which is obtained by means of an auto-associative neural network (AANN). Once the AANN is trained, the dissimilarity between two images is evaluated in terms of the extracted features. This information can be subsequently turned into a change detection result. This study, which presents one of the first techniques for on-board change detection, yielded encouraging results on a set of Sentinel-2 images, even in light of comparison with a benchmark technique.

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Research works printed but not linked: 4

  1. Spigai, M.; Oller, G. On-Board Change Detection with Neural Networks. In Proceedings of the International Archives of Photogrammetry Remote Sensing and Spatial Information Sciences, Denver, CO, USA, 10-15 November 2002.
  2. Ahuja, S.N.; Biday, S.; Ragha, L. Change Detection in Satellite Images Using DWT and PCA. Int. J. Eng. Assoc. 2018, 2, 76-81.
  3. Kingma, D.P.; Ba, J.L. Adam: A method for stochastic optimization. In Proceedings of the International Conference on Learning Representations (ICLR), San Diego, CA, USA, 7-9 May 2015.
  4. Saha, S.; Ebel, P.; Zhu, X.X. Self-supervised multisensor change detection. IEEE Trans. Geosci. Remote Sens. 2022, 60, 4405710.

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Authors
Guerrisi, G., Del Frate, F., & Schiavon, G.
Affiliations
  • University of Rome Tor Vergata (IT)
  • Department of Civil Engineering and Computer Science Engineering, “Tor Vergata” University of Rome, 00133 Rome, Italy
Corresponding author
Guerrisi, Giorgia
Venue
Remote Sensing
Publisher
MDPI AG
Published
2022-06-07
Volume
14
Issue
12
Pages
2735
ISSN
2072-4292 (ISSN-L)
OpenAlex
W4282551395
Cited by
8
References
33
Citations by year
2026: 1 · 2024: 2 · 2023: 5
FWCI
0.68
Type
journal article
Language
en
Open access
Locations
  • Remote Sensing (publishedVersion, cc-by)
  • Cineca Institutional Research Information System (Tor Vergata University) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Physical Sciences › Engineering › Media Technology › Remote-Sensing Image Classification
  • Physical Sciences › Engineering › Ocean Engineering › Satellite Image Processing and Photogrammetry
  • Physical Sciences › Environmental Science › Ecology › Remote Sensing in Agriculture
Keywords
autoencoder, satellite imagery, feature extraction, image dissimilarity, data compression, Sentinel-2, Earth observation

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