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Fig. 4 | BMC Medical Informatics and Decision Making

Fig. 4

From: Diagnosis of cardiac abnormalities based on phonocardiogram using a novel fuzzy matching feature extraction method

Fig. 4

Matching results of FD.S.MD using FMFE. a is the modulus of PCG signals of one cardiac cycle in time domain after Fast Fourier Transform, b is the template signal in frequency domain and c is the matching degree results between a and b. The maximum FD.S.MD value can be easily obtained at the starting position of matching process. Some minor degrees appeared due to the matching of minor distributions of original signal and main distributions of template signal

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BMC Medical Informatics and Decision Making

ISSN: 1472-6947

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