High Order Statistics and Time-Frequency Domain to Classify Heart Sounds for Subjects under Cardiac Stress Test

<div>Segmented sound with the HFS envelope and the magnitude of the S-transform of the corresponding heart sound showing that HFS signature does not correspond necessarily to just one class.</div>

Computational and Mathematical Methods in Medicine

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Figure 3

Figure 3: High Order Statistics and Time-Frequency Domain to Classify Heart Sounds for Subjects under Cardiac Stress Test 