Exoplanet Imaging Data Challenge

Talk @ Global Challenges Science Week, Grenoble, France.

Transcript

1. Exoplanet Imaging Data Challenge Carlos Alberto Gomez Gonzalez Global Challenges Science Week. June3, 2019
2. {insert research topic here} Data Challenge Carlos Alberto Gomez Gonzalez Global Challenges Science Week. June3, 2019
3. Exoplanet Imaging Data Challenge Planet: a celestial body moving in an elliptical orbit round the Sun
4. Exo from extrasolar (outside of the Solar System)
5. Exoplanet Imaging Data Challenge
6. Data challenges • Problem to solve • Benchmark data • Metrics • Platform for hosting the competition • Motivate people to participate (*)
7. Credit: Martin Vargic
8. Credit: NASA, http://planetquest.jpl.nasa.gov High-contrast imaging Lighthouse -> Star Firefly -> exoplanet
9. Credit: NASA, http://planetquest.jpl.nasa.gov High-contrast imaging Lighthouse -> Star Firefly -> exoplanet
10. Credit: NASA, http://planetquest.jpl.nasa.gov High-contrast imaging Lighthouse -> Star Firefly -> exoplanet Stars never shut off !!!
11. Debris disk Beta Pictoris (occulted)
12. Yep, this is the exoplanet (Beta Pictoris b)
13. 4k confirmed exoplanets but only ~1% observed!
14. HR8799, Marois et al. 2010 20 AU 0.5” Konopacky et al. 2013 Bowler 2016 Milli et al. 2016
15. Multi-dimensional arrays ( ) exoplanet t, λ, x, y 3D 4D
16. Fake planet (low contrast) Signal and noise
17. spatially rescaled images t0 t0 with an integral field spectrograph Signal and noise
18. Image processing pipeline Getting rid of the noise…
19. 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)
22. 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
24. Submissions
25. Blob counting
26. Metrics
28. Exercise of Openness
29. Thank you carlgogo.github.io/ github.com/carlgogo/ speakerdeck.com/carlgogo/ linkedin.com/in/carlgogo/