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Exoplanet Imaging Data Challenge
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Carlos Alberto Gomez Gonzalez
June 06, 2019
Science
2
340
Exoplanet Imaging Data Challenge
Talk @ Global Challenges Science Week, Grenoble, France.
Carlos Alberto Gomez Gonzalez
June 06, 2019
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Transcript
Exoplanet Imaging Data Challenge Carlos Alberto Gomez Gonzalez Global Challenges
Science Week. June3, 2019
{insert research topic here} Data Challenge Carlos Alberto Gomez Gonzalez
Global Challenges Science Week. June3, 2019
Exoplanet Imaging Data Challenge Planet: a celestial body moving in
an elliptical orbit round the Sun
Exo from extrasolar (outside of the Solar System)
Exoplanet Imaging Data Challenge
Data challenges • Problem to solve • Benchmark data •
Metrics • Platform for hosting the competition • Motivate people to participate (*)
Credit: Martin Vargic
Credit: NASA, http://planetquest.jpl.nasa.gov High-contrast imaging Lighthouse -> Star Firefly ->
exoplanet
Credit: NASA, http://planetquest.jpl.nasa.gov High-contrast imaging Lighthouse -> Star Firefly ->
exoplanet
Credit: NASA, http://planetquest.jpl.nasa.gov High-contrast imaging Lighthouse -> Star Firefly ->
exoplanet Stars never shut off !!!
Debris disk Beta Pictoris (occulted)
Yep, this is the exoplanet (Beta Pictoris b)
4k confirmed exoplanets but only ~1% observed!
HR8799, Marois et al. 2010 20 AU 0.5” Konopacky et
al. 2013 Bowler 2016 Milli et al. 2016
Multi-dimensional arrays ( ) exoplanet t, λ, x, y 3D
4D
Fake planet (low contrast) Signal and noise
spatially rescaled images t0 t0 with an integral field spectrograph
Signal and noise
Image processing pipeline Getting rid of the noise…
Algorithms 2006 - 2019 • Median frame subtraction • Pairwise
subtraction (GRAPHIC) • Least squares image combination (LOCI) • Low-rank approximations (PCA, NMF) • Low-rank plus sparse decompositions (LLSG) • MLE & Matched filtering (ANDROMEDA, KLIP-FM) • Supervised detection with deep neural networks (SODINN)
None
None
Data • Lack of benchmark data in the HCI community
• Requested datasets from the most important HCI instruments on Earth • Heterogeneous in terms of quality and characteristics • Synthetic companions were injected
None
Submissions
Blob counting
Metrics
None
Exercise of Openness
Thank you carlgogo.github.io/ github.com/carlgogo/ speakerdeck.com/carlgogo/ linkedin.com/in/carlgogo/