A Data-Driven Feature Extraction Method for Enhanced Phonocardiogram Segmentation

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2017

Autores

Renna, F (Autor) FCUP; Oliveira, J (Autor) Outra; Coimbra, M (Autor) FCUP

Ata de Conferência Internacional

Título: 2017 COMPUTING IN CARDIOLOGY (CINC)

Páginas: 1-4

44th Computing in Cardiology Conference (CinC)

Rennes, FRANCE, SEP 24-27, 2017

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 1 Citação

Outras Informações

ID Authenticus: P-00N-W4E

DOI: 10.22489/cinc.2017.183-281

Abstract (EN): In this work, we present a method to extract features from heart sound signals in order to enhance segmentation performance. The approach is data-driven, since the way features are extracted from the recorded signals is adapted to the data itself. The proposed method is based on the extraction of delay vectors, which are modeled with Gaussian mixture model priors, and an information-theoretic dimensionality reduction step which aims to maximize discrimination between delay vectors in different segments of the heart sound signal. We test our approach with heart sounds from the publicly available PhysioNet dataset showing an average F-1 score of 92.6% in detecting S-1 and S-2 sounds.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4