A Subject-Driven Unsupervised Hidden Semi-Markov Model and Gaussian Mixture Model for Heart Sound Segmentation

• Published in: IEEE journal of selected topics in signal processing Vol. 13; no. 2; pp. 323 - 331
• Main Authors: Oliveira, Jorge, Renna, Francesco, Coimbra, Miguel
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.05.2019; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Acoustics; Algorithms; Analytical models; Emission; emission modeling and optimization; Gaussian distribution; Gaussian mixture model; Gaussian mixture models; Heart; Hidden Markov models; Markov chains; Markov models; phonocardiogram; Phonocardiography; Probabilistic models; Probability distribution; Segmentation; Signal processing; Signal processing algorithms

The analysis of heart sounds is a challenging task, due to the quick temporal onset between successive events and the fact that an important fraction of the information carried by phonocardiogram (PCG) signals lies in the inaudible part of the human spectrum. For these reasons, computer-aided analys...