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Automatic Detection and Correction of Random Telegraph Signal Artifacts in Earth Observation Images

Lucas, Sylvain and Oberlin, Thomas and Goiffon, Vincent and Le Mer, Fanny Automatic Detection and Correction of Random Telegraph Signal Artifacts in Earth Observation Images. (2022) IEEE Geoscience and Remote Sensing Letters, 19. 1-5. ISSN 1545-598X

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Official URL: https://doi.org/10.1109/LGRS.2022.3224520


Satellite optical and infrared images can be degraded by a piecewise-constant random artifact called random telegraph signal (RTS), which is caused by unstable semiconductor defects in the photodetector. In this letter, we aim at proposing new techniques to detect and correct such artifacts in the specific context of push-broom detectors, where some columns exhibit RTS that superimposes with the landscape. Our detector is based on a nonparametric statistical test that compares the distribution of each column to its neighbors. Concerning the RTS correction, we first propose a signal processing method that estimates the levels and jumps of the RTS. Then, we propose another method inspired by variational image destriping, which directly estimates the RTS through the use of total variation (TV). Experiments—on Pléiades images with synthetic RTS and on a real SPOT-5 image—show the effectiveness of the proposed techniques.

Item Type:Article
Additional Information:Thanks to the IEEE (Institute of Electrical and Electronics Engineers). This paper is available at : https://ieeexplore.ieee.org/document/9963635/ “© 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National d'Études Spatiales - CNES (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Other partners > NOVELTIS (FRANCE)
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Deposited On:01 Feb 2023 11:51

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