Loading…
RSEConUK 2019 has ended
The Fourth Conference of Research Software Engineering was held at the University of Birmingham.

Content from all sessions is licensed under a Creative Commons Attribution 2.0 UK: England & Wales License.
Wednesday, September 18 • 09:30 - 09:55
#3D1 - Machine Learning - Pushing the Limits of Exoplanet Discovery via Direct Imaging with Deep Learning

Log in to save this to your schedule and see who's attending!

One technique to detect these distant worlds is through the direct detection of their thermal emission. The so-called direct imaging technique is suitable for observing young planets far from their star.

Due to the star emissions, these are very low signal-to-noise-ratio (SNR) measurements. Moreover, the limited and highly unbalanced ground truth hinders the use of supervised learning approaches to automatically detect planets signals in the images.

In this talk, we show how to bypass the scarcity of real data by training a Generative Adversarial Network. The synthetic images produced by the generative model can be assumed to not contain any planet and are augmented by artificially injecting planets signals. The data obtained are not just labeled but, for the positive samples, the exact position of the object to detect is known. CNN detectors trained on this synthetic dataset exhibit good predictive performance and, on real data, the models can re-confirm bright sources detection. In this sense, the above technique seems to go beyond the current state of the art in exoplanet discovery via direct imaging.

Speakers


Wednesday September 18, 2019 09:30 - 09:55
1. Bramall - Elgar Concert Hall Aston Webb Building