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Communication Dans Un Congrès Année : 2023

Multi-View 3D Compton Image Reconstruction With a Generalized List-Mode MLEM Algorithm

Résumé

This paper aims to generalize the well-known list-mode maximum likelihood expectation maximization (LM-MLEM) algorithm to reconstruct 3D Compton images from multi-view data. The main originality resides in developing a new list-mode data space and the associated probabilistic framework enabling parallax improvement for compact Compton cameras. To further improve the accuracy of 3D image reconstruction, we carry out a data preprocessing based on the spectra of total energy and incidence angle of photon on absorber to select significant Compton events in consideration. Numerous numerical results on real datasets confirm the outperformance of the generalized LM-MLEM algorithm in the localization of radioactive sources.

Dates et versions

hal-04446981 , version 1 (08-02-2024)

Identifiants

Citer

Nhan Le, Hichem Snoussi, Zied Hmissi, Alain Iltis, Guillaume Lebonvallet, et al.. Multi-View 3D Compton Image Reconstruction With a Generalized List-Mode MLEM Algorithm. 2023 IEEE International Conference on Image Processing (ICIP), Oct 2023, Kuala Lumpur, Malaysia. pp.2655-2659, ⟨10.1109/ICIP49359.2023.10222838⟩. ⟨hal-04446981⟩
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