Seminario 4 settembre - "High contrast and resolution reconstruction in quantitative photoacoustic tomography"

Giorno 4 settembre p.v. il prof. Alfio Borzì dell’Università di Würzburg alle ore 12:00 presso l'aula A.M. Anile terrà un seminario dal titolo "High contrast and resolution reconstruction in quantitative photoacoustic tomography"

Abstract dell'intervento:

"In this talk, a new approach for reconstruction of optical diffusion and absorption coefficients in quantitative photoacoustic tomography is presented. This approach is based on a Tikhonov-type functional with a L1 regularization term for promoting sparsity of the absorption coefficient and a prior involving a Kubelka–Munk absorption–diffusion relation that allows to obtain superior reconstructions. Thus the reconstruction problem is formulated as the minimization of this functional with the constraint of a photon-propagation model. This problem is solved by a novel sequential quadratic hamiltonian algorithm based on the Pontryagin maximum principle. Results of numerical experiments demonstrate the effectiveness of the proposed computational strategy."