Deep Layer Kernel Sparse Representation Network for the Detection of Heart Valve Ailments from the Time-Frequency Representation of PCG Recordings

Figure 3

(a) Typical PCG recording of the normal class. (b) Time-frequency representation of normal PCG signal obtained using SCT. (c) PCG recording of the MR class. (d) Time-frequency representation of MR PCG signal obtained using SCT. (e) PCG recording of the MS class. (f) Time-frequency representation of MS PCG signal obtained using SCT. (g) PCG recording of the AS class. (h) Time-frequency representation of AS PCG signal obtained using SCT. (i) PCG recording of the MVP class. (j) Time-frequency representation of MVP PCG signal obtained using SCT.

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