Determination of Morphologically Characteristic PCG Segments from Spectrogram Image
The three-dimensional presentation of phonocardiac signal, simultaneously considering time, amplitude and frequency, allows the determination of morphological characteristic segments in phonocardiogram (PCG), both in short and long 8X LAUNDRY DETERGENT sequences.For this purpose, the STFT (Short-Time Fourier Transform) spectrogram images were used.