Banca de DEFESA: LEONARDO ALVES FERREIRA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE : LEONARDO ALVES FERREIRA
DATA : 30/08/2024
HORA: 09:00
LOCAL: https://conferenciaweb.rnp.br/sala/andre-39
TÍTULO:

Deep Image Prior for solving inverse problems in imaging methods

PÁGINAS: 90
RESUMO:

Deep Image Prior (DIP) introduced a new way of using Artificial Neural Networks that dismisses the need for training its parameters on a large dataset. This method allows solving inverse problems in imaging using only the measurements of the case to be solved. This thesis aimed to investigate whether DIP is a worthy method to explore for solving modern inverse problems in imaging. We tested the method for reconstructing Electrical Impedance Tomography images of the human head, restoring severely blurred text images, and reconstructing limited-angle Computed Tomography images. We also proposed modifications to the technique to improve its performance. Our results showed that DIP achieves good performance even for moderately high levels of data degradation, surpassing traditional methods and some implementations of supervised Deep Learning algorithms. We were also able to improve upon the method's original proposal with our modifications. However, we could not achieve the performance of end-to-end Deep Learning approaches. In conclusion, we found that DIP is a powerful and versatile method and is a good candidate to be explored for solving inverse problems in imaging, especially when gathering large datasets is not feasible.

MEMBROS DA BANCA:
Presidente - Interno ao Programa - 2334927 - ANDRE KAZUO TAKAHATA
Membro Titular - Examinador(a) Interno ao Programa - 1761105 - MURILO BELLEZONI LOIOLA
Membro Titular - Examinador(a) Interno ao Programa - 1946319 - DIOGO COUTINHO SORIANO
Membro Titular - Examinador(a) Externo ao Programa - 2123676 - OLAVO LUPPI SILVA
Membro Titular - Examinador(a) Externo à Instituição - RENATO DA ROCHA LOPES - UNICAMP
Membro Suplente - Examinador(a) Interno ao Programa - 1544392 - ALINE DE OLIVEIRA NEVES PANAZIO
Membro Suplente - Examinador(a) Interno ao Programa - 1545987 - FRANCISCO JOSE FRAGA DA SILVA
Membro Suplente - Examinador(a) Externo ao Programa - 2188954 - ERICK DARIO LEON BUENO DE CAMARGO
Membro Suplente - Examinador(a) Externo ao Programa - 1545367 - CELSO SETSUO KURASHIMA
Membro Suplente - Examinador(a) Externo à Instituição - IARA DA CUNHA RIBEIRO DA SILVA - UTFPR