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DTSTAMP:20261101T234129
DTSTART;TZID=America/Detroit:20261104T160000
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SUMMARY:Workshop / Seminar:Student AIM Seminar: Instrument-Aware Diffusion for Solar Magnetogram Reconstruction
DESCRIPTION:Historical scientific archives often contain observations of lasting value that were acquired with lower-resolution instruments than those available today. Solar magnetograms provide a motivating example: the Michelson Doppler Imager (MDI) aboard the Solar and Heliospheric Observatory (SOHO) recorded decades of solar activity before the higher-resolution Helioseismic and Magnetic Imager (HMI) became available. We develop a generative framework that first learns how modern observations are transformed by an older instrument\, uses this transformation to construct paired training data\, and then trains a conditional diffusion model to reverse the loss of resolution. A scalable multiscale U-Net and DPM++ sampler generate multiple modern-quality reconstructions from each historical observation. More broadly\, this provides a general strategy for connecting scientific archives across generations of instruments.
UID:154402-21917657@events.umich.edu
URL:https://events.umich.edu/event/154402
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics
LOCATION:East Hall - 3088
CONTACT:
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