20–21 Jan 2025
Aula Magna "Fratelli Pontecorvo", Building E, Polo Fibonacci. Pisa
Europe/Rome timezone

Higher Order Data Completion for Undersampled Raster Scans in Spectromicroscopy

20 Jan 2025, 16:00
2h
Building E (Aula Magna "Fratelli Pontecorvo", Building E, Polo Fibonacci. Pisa)

Building E

Aula Magna "Fratelli Pontecorvo", Building E, Polo Fibonacci. Pisa

Largo Bruno Pontecorvo 3, 56127 Pisa (Building E)

Speaker

Silvia Gazzola

Description

In this poster we present a novel iterative algorithm for low rank tensor completion, tailored to the recovering the missing entries in undersampled X-ray spectromicroscopy data, which are used to study material distributions. Compared to established techniques that rely on data matricizations and low-rank matrix completion, the new method allows the selection of robust sampling patterns, tensor multi-rank and undersampling ratio, while minimising the impact of undersampling on the data analysis. Results obtained on real data will be illustrated.

Primary author

Presentation materials

There are no materials yet.