Frontier of Interferometric Imaging from SKA to ngEHT


Computational imaging is a key process in radio and optical/near-infrared interferometry to reveal the fine views of the universe from observational data taken in Fourier space. Over the last decade, significant progress has been made in the development of new computational imaging techniques to address and overcome various challenges brought by the advent of the new instruments including the Event Horizon Telescope (EHT), Low Frequency Array (LOFAR), MeerKAT and Very Large Telescope Interferometer (VLTI), as well as upgrades of existing facilities such as Very Large Array (VLA). Many algorithmic and data processing challenges arise in our quest to endow these instruments, set to observe the sky at new regimes of sensitivity and resolution, with their expected acute vision. In this new era, imaging encompasses not only forming 2D spatial maps of observed fields of view, but also the reconstruction of the spectrum, polarisation, and dynamics of the sources of interest, not to mention the mapping of underlying physical quantities. This focused session will gather interferometric imaging experts to review the exciting frontiers in the field.

Organisers: Kazunori Akiyama (Chair) & Yves Wiaux (Committee member)

Session Schedule

17:30 - 17:50 Invited talk -
Broadening horizons of black hole imaging with the EHT and ngEHT
Kazunori Akiyama
17:50 - 18:10 Invited talk -
Next Generation Black-Hole Imaging: Beyond a 2D Image
Aviad Levis
18:10 - 18:30 Invited talk -
The state of the art in classical radio astronomical deconvolution algorithms
André Offringa
18:30 - 18:50 Invited talk -
Scalable wide-field imaging in Radio interferometry: from sparsity-based to learned regularisation
Arwa Dabbech
18:50 - 19:10 Invited talk -
Designing calibration and imaging pipelines for portability and reproducibility
Oleg Smirnov
19:10 - 20:30 Invited poster -
Resolve: Multi-domain Imaging of Radio-interferometric Data through Bayesian Inference
Jakob Knollmüler
19:10 - 20:30 Contributed poster -
PnP algorithms for large-scale high-dynamic range imaging in radio astronomy
Matthieu Terris*
19:10 - 20:30 Contributed poster -
The importance of compressed sensing and regularisation: An application to Faraday depth imaging
Miguel A. Carcamo*
19:10 - 20:30 Contributed poster -
PRIISM: Imaging tool for ALMA telescope
Shiro Ikeda
19:10 - 20:30 Contributed poster -
Scalable Analysis and Synthesis in Radio Interferometric Imaging via a Chunked NUFFT
Matthieu Simeoni