doi.eso.org

• Guglielmetti, Fabrizia [European Southern Observatory (ESO)]
• Mérand, Antoine [European Southern Observatory (ESO)]
• Wittkowski, Markus [European Southern Observatory (ESO)]
• Tychoniec, Lukasz [European Southern Observatory (ESO)]
• González-Torà, Gemma [European Southern Observatory (ESO)]
• Zwaan, Martin A. [European Southern Observatory (ESO)]
• Andreani, Paola [European Southern Observatory (ESO)]
• De Breuck, Carlos [European Southern Observatory (ESO)]

Supported by the EU-funded Opticon RadioNet Pilot (ORP), the VLTI and ALMA Synthesis Imaging Workshop was held at ESO Headquarters on 9–12 January 2023. The hybrid format of the workshop allowed one hundred registered participants from six continents to gather, bringing with them a wide range of expertise: theorists, observers and data scientists. The need for such a broad range of skills originates in the workshop’s focus on interferometric image-reconstruction algorithms applied to data from instruments across the optical/infrared and millimetre/radio domain, allowing the diverse communities to build synergies and explore innovative techniques applicable to both regimes. The three-day workshop was organised into six topics, each followed by discussion. Four distinguished lecturers established a shared understanding of data analysis processes (including data characteristics, handling and reduction) and presented innovative techniques employing artificial intelligence used by the two communities. Traditional imaging methods, as well as techniques for morphology fitting and other popular tools and methods, were presented and discussed by keynote speakers. Given the nature and goals of the workshop, most of the speakers were invited. ORP supported a number of speakers as well as students to allow growth within a young community in the rapidly evolving area of image analysis.