Banca de QUALIFICAÇÃO: GIULIO GUIYTI ROSSIGNOLO SUZUMURA

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
DISCENTE : GIULIO GUIYTI ROSSIGNOLO SUZUMURA
DATA : 01/08/2019
HORA: 14:00
LOCAL: sala 303, 3º andar, Bloco B, Campus SA da Fundação Universidade Federal do ABC, localizada na Avenida dos Estados, 5001, Santa Terezinha, Santo André, SP
TÍTULO:

Evaluation of the Total Variation of the Spectrogram for Blind Source Separation

PÁGINAS: 20
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Elétrica
RESUMO:

Classical Source Separation approaches based on the Independent Component Analysis and Sparse Component Analysis are widely used and, depending on the application, are able to achieve good results. Nevertheless, in audio signals, exploring other characteristics may lead to better performance. For example, transforming the signals into the time-frequency domain (thus obtaining the spectrogram), allows us to interpret the audio signals as images and, therefore, techniques for image procesing may be applied to bring new perspectives to the problem of source separation. In this sense, in this work, based on metrics associated with the image sharpness, we evaluate the use of the Total Variation of the Spectrogram in the problem of source separation. The preliminary results indicate that this new approach may be useful to obtain a new method for source separation.

MEMBROS DA BANCA:
Presidente - Interno ao Programa - 1761107 - RICARDO SUYAMA
Membro Titular - Examinador(a) Interno ao Programa - 2334927 - ANDRE KAZUO TAKAHATA
Membro Titular - Examinador(a) Externo ao Programa - 2356637 - KENJI NOSE FILHO
Membro Suplente - Examinador(a) Interno ao Programa - 1761105 - MURILO BELLEZONI LOIOLA