| Download | - View final version: DanceCam: atmospheric turbulence mitigation in wide-field astronomical images with short-exposure video streams (PDF, 3.4 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1093/mnras/stae1018 |
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| Author | Search for: Bialek, SpencerORCID identifier: https://orcid.org/0009-0007-4388-2508; Search for: Bertin, EmmanuelORCID identifier: https://orcid.org/0000-0002-3602-3664; Search for: Fabbro, Sébastien1ORCID identifier: https://orcid.org/0000-0003-2239-7988; Search for: Bouy, HervéORCID identifier: https://orcid.org/0000-0002-7084-487X; Search for: Rivet, Jean-PierreORCID identifier: https://orcid.org/0000-0002-0289-5851; Search for: Lai, OlivierORCID identifier: https://orcid.org/0000-0001-5656-7346; Search for: Cuillandre, Jean-CharlesORCID identifier: https://orcid.org/0000-0002-3263-8645 |
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| Affiliation | - National Research Council of Canada. Herzberg Astronomy and Astrophysics
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| Funder | Search for: European Research Council |
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| Format | Text, Article |
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| Subject | methods: data analysis; methods: observational; techniques: image processing; software: simulations; turbulence; atmospheric effects |
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| Abstract | We introduce a novel technique to mitigate the adverse effects of atmospheric turbulence on astronomical imaging. Utilizing a video-to-image neural network trained on simulated data, our method processes a sliding sequence of short-exposure (∼0.2 s) stellar field images to reconstruct an image devoid of both turbulence and noise. We demonstrate the method with simulated and observed stellar fields, and show that the brief exposure sequence allows the network to accurately associate speckles to their originating stars and effectively disentangle light from adjacent sources across a range of seeing conditions, all while preserving flux to a lower signal-to-noise ratio than an average stack. This approach results in a marked improvement in angular resolution without compromising the astrometric stability of the final image. |
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| Publication date | 2024-04-19 |
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| Publisher | Oxford University Press |
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| Licence | |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 1927c950-8b25-4ea6-9fc8-19cbf661bbe4 |
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| Record created | 2024-09-12 |
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| Record modified | 2024-09-12 |
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