This contribution addresses the problem of image reconstruction of radioactivity distribution for which the available information arises from several classes of data, each associated with a specific combination of detections. We introduce a theoretical framework to measure the amount of information brought by each class and we develop an iterative algorithm dedicated to multi-class reconstruction based on maximum likelihood.We apply our approach to the XEMIS2 camera, a preclinical prototype of a Compton telescope dedicated to 3-photon PET imaging for which four distinct classes of partial detections coexist with the full detection class.Based on Monte Carlo simulations, we present the first elements of our model.
@article{arxiv.2309.05324,
title = {Reconstruction multiclasse pour l'imagerie TEP 3-photons},
author = {Mehdi Latif and Jérôme Idier and Thomas Carlier and Simon Stute},
journal= {arXiv preprint arXiv:2309.05324},
year = {2023}
}
Comments
in French language, GRETSI'23, Groupe de Recherche et d'Etudes de Traitement du Signal et des Images, Aug 2023, Grenoble, France