It is now a scientific fact that heart sounds reflect the functioning of the cardiovascular system. That is why, a team of researchers at the University of Hangzhou Dianzi in China are introducing marginal spectrum analysis of heart sounds, to identify people.
The results suggest that the technique has a recognition rate of 94.4 percent, which compares favorably with the 84.32 percent rate offered by traditional methods of biometric technology.
The system’s main advantage is the high security it provides because the sounds of a person’s heart cannot be faked. Moreover, the heart’s sound is a low-frequency, one-dimensional signal that is easy to process.
On the other hand, situations such as noisy environments and heart conditions can pose challenges to the technology.