8–13 Jun 2025
OAC conference center, Kolymbari, Crete, Greece.
Europe/Athens timezone

Bias Reduction Using Expectation Maximization in the Optimization of an AI-Assisted Muon Tomography System

Not scheduled
25m
OAC conference center, Kolymbari, Crete, Greece.

OAC conference center, Kolymbari, Crete, Greece.

Speaker

Marta de la Puente Santos

Description

Muon tomography is a powerful imaging technique that leverages cosmic-ray muons to probe the internal structure of large-scale objects. However, traditional reconstruction methods, such as the Point of Closest Approach (POCA), introduce significant bias, leading to suboptimal image quality and inaccurate material characterization. To address this issue, we propose an approach based on Expectation Maximization (EM), a probabilistic iterative method that refines the reconstruction by reducing bias in the inferred muon trajectories.

In this work, we present the implementation of an EM algorithm tailored for muon tomography and compare its performance against the POCA baseline. We analyze the improvements in reconstruction accuracy and discuss the impact of EM-based optimization in AI-assisted muon imaging systems. This approach has been integrated into the muograph package.

Author

Co-authors

Andrea Giammanco (Universite Catholique de Louvain (UCL) (BE)) Maxime Lagrange (CP3 Universite Catholique de Louvain) Dr Pietro Vischia (Universidad de Oviedo and Instituto de Ciencias y Tecnologías Espaciales de Asturias (ICTEA)) Zahraa Daher

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