A CLASSIFICATION METHOD OF HEART SOUNDS BASED ON HIDDEN MARKOV MODEL

摘要

A heart sound classification method using a Hidden Markov Model(HMM) is provided to judge heart sound reliably, by providing an automatic heart sound classification method using HMM instead of ANN(Artificial Neural Network). In a heart sound classification method, a Hidden Markov Model(HMM) parameter value(40) as to heart sound data(10) is estimated. A sort of decease corresponding to the given heart sound data is determined by using the HMM parameter value. The HMM parameter estimation process includes a process of setting an HMM initial parameter value as to the heart sound data, and a process of re-estimating the HMM parameter value through an Expectation Maximization process of the HMM initial parameter value.