Banca de DEFESA: GIULIO GUIYTI ROSSIGNOLO SUZUMURA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : GIULIO GUIYTI ROSSIGNOLO SUZUMURA
DATE: 31/05/2023
TIME: 09:00
LOCAL: VIDEOCONFERÊNCIA (https://conferenciaweb.rnp.br/sala/ricardo-33)
TITLE:

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

PAGES: 154
BIG AREA: Engenharias
AREA: Engenharia Elétrica
SUMMARY:

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.

COMMITTEE MEMBERS:
Presidente - Interno ao Programa - 1761107 - RICARDO SUYAMA
Membro Titular - Examinador(a) Interno ao Programa - 2356637 - KENJI NOSE FILHO
Membro Titular - Examinador(a) Interno ao Programa - 1544392 - ALINE DE OLIVEIRA NEVES PANAZIO
Membro Titular - Examinador(a) Externo à Instituição - DANIEL GUERREIRO E SILVA - UNB
Membro Titular - Examinador(a) Externo à Instituição - LEONARDO TOMAZELI DUARTE - UNICAMP
Membro Suplente - Examinador(a) Interno ao Programa - 2334927 - ANDRE KAZUO TAKAHATA
Membro Suplente - Examinador(a) Externo à Instituição - LEVY BOCCATO - UNICAMP
Membro Suplente - Examinador(a) Externo à Instituição - ROMIS RIBEIRO DE FAISSOL ATTUX - UNICAMP