Focus on… Carlos Gomez and image processing for astrophysical applications

on the February 20, 2019

Carlos Alberto Gomez Gonzalez holds a junior research chair at the Grenoble Alpes Data Institute since 2017. He works on data and image processing for astrophysical applications at the Institute of Planetology and Astrophysics of Grenoble (IPAG).

Carlos Gomez develops machine learning algorithms for detecting exoplanets using artificial neural networks. This research is inspired by the artificial intelligence literature that focuses on handling multidimensional arrays in a supervised learning context. The figure below illustrates some of the neural network architectures that he has developed.


Carlos Gomez also develops open source scientific tools. All the software is hosted on GitHub, a web based version control system that facilitates the interaction with collaborators and gives more visibility to the code. Among his projects on GitHub, there are the Vortex Image Processing, the SODINN and PyAstrOFit libraries.


The junior researcher is organizing an international data challenge for high-contrast imaging data processing with collaborators from institutions such as the NASA Jet Propulsion Lab, University of California-Berkeley and the Max Planck Institute for Astronomy. The main goal of this challenge is the fair comparison of algorithms for direct detection of exoplanets through high-contrast imaging. A website explains the motivation, the rules, the metrics and other aspects of the competition. Thanks to the help of Raphael Bacher (engineer at Grenoble Alpes Data Institute), they have implemented the challenge on the reproducible computation platform - Codalab. They plan the launch soon the competition, once they iron out the remaining details. The challenge is open source.


This research has resulted in numerous presentations and articles. You can see the slides Carlos Gomez’s presentations on his Speaker Deck profile. He has published one first-author paper, "Supervised detection of exoplanets in high-contrast imaging sequences”, on the Astronomy & Astrophysics. He co-authored 7 publications in peer-reviewed astronomical journals, most of them are shown in his Google Scholar profile.

Published on February 20, 2019