Method for delineation of characteristic points in an electrocardiogram signal, and storage medium, electronic device and electrocardiogram signal analyzing system for implementing the method

A non-transitory computer-readable storage medium comprising program instructions for causing a computing apparatus to execute consecutive steps of a method for delineation of characteristic points in an electrocardiogram signal, said method comprising:

• (a) receiving an electrocardiogram signal;
• (b) processing the electrocardiogram signal to obtain a first order multiscale differential operator wavelet transform, a second order multiscale differential operator wavelet transform, and a third order multiscale differential operator wavelet transform;
• and
• (c) locating at least one characteristic point in at least one wave segment of the electrocardiogram signal based on the first order multiscale differential operator wavelet transform, the second order multiscale differential operator wavelet transform, and the third order multiscale differential operator wavelet transform, said at least one characteristic point being at least one of a P-wave peak point, a P-wave on point, a P-wave off point, a QRS-wave peak point, a QRS-wave on point, a QRS-wave off point, a T-wave peak point, a T-wave on point, and a T-wave off point.

An electronic device comprising program instructions for causing said electronic device to execute consecutive steps of a method for delineation of characteristic points in an electrocardiogram signal, said method comprising:

• (a receiving an electrocardiogram signal;
• (b) processing the electrocardiogram signal to obtain a first order multiscale differential operator wavelet transform, a second order multiscale differential operator wavelet transform, and a third order multiscale differential operator wavelet transform thereof;
• and
• (c) locating at least one characteristic point in at least one wave segment of the electrocardiogram signal based the first order multiscale differential operator wavelet transform, the second order multiscale differential operator wavelet transform, and the third order multiscale differential operator wavelet transform, said at least one characteristic point being at least one of a P-wave peak point, a P-wave on point, a P-wave off point, a QRS-wave peak point, a QRS-wave on point, a QRS-wave off point, a T-wave peak point, a T-wave on point, and a T-wave off point.

An electronic device capable of delineating characteristic points in an electrocardiogram signal, comprising:

• means for receiving an electrocardiogram signal;
• means for processing the electrocardiogram signal to obtain a first order multiscale differential operator wavelet transform, a second order multiscale differential operator wavelet transform, and a third order multiscale differential operator wavelet transform thereof;
• and
• means for locating at least one characteristic point in at least one wave segment of the electrocardiogram signal based on the first order multiscale differential operator wavelet transform, the second order multiscale differential operator wavelet transform, and the third order multiscale differential operator wavelet transform, said at least one characteristic point being at least one of a P-wave peak point, a P-wave on point, a P-wave off point, a QRS-wave peak point, a QRS-wave on point, a QRS-wave off point, a T-wave peak point, a T-wave on point, and a T-wave off point.

An electrocardiogram signal analyzing system, comprising:

• an analog-to-digital converting unit for converting an analog electrocardiogram signal into a corresponding digital electrocardiogram signal;
• and
• a signal processing unit coupled electrically to said analog-to-digital converting unit and including
• a non-transitory storage medium for receiving and storing the digital electrocardiogram signal, and having an electrocardiogram point delineation program stored therein, and
• a digital signal processor coupled electrically to said non-transitory storage medium for retrieving the electrocardiogram point delineation program, and for performing consecutive steps of a method for delineation of characteristic points in the digital electrocardiogram signal through execution of the electrocardiogram point delineation program, the method including:
• (a) processing the digital electrocardiogram signal to obtain a first order multiscale differential operator wavelet transform, a second order multiscale differential operator wavelet transform and a third order multiscale differential operator wavelet transform thereof;
• and (b) locating at least one characteristic point in at least one wave segment of the electrocardiogram signal based on the first order multiscale differential operator wavelet transform, the second order multiscale differential operator wavelet transform, and the third order multiscale differential operator wavelet transform, said at least one characteristic point being at least one of a P-wave peak point, a P-wave on point, a P-wave off point, a QRS-wave peak point, a QRS-wave on point, a QRS-wave off point, a T-wave peak point, a T-wave on point, and a T-wave off point.