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QRS complex based human identification
2015 IEEE International Conference on Signal and Image Processing Applications (ICSIPA), 2015In the last years, the electrocardiogram signal has become an important biometric modality due essentially to the physiological or/and behavioral characteristics variation of the heart among different individuals. The aim of this paper is to present a human identification approach using some time and frequency features of the QRS complex of the ECG ...
Assadi, I. +4 more
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Abnormalities of the QRS Complex
1990Abnormalities of the QRS axis and the QRS interval have been discussed in earlier chapters and will be noted in this chapter only as they relate to other problems. As a general rule, the QRS complex reflects primarily left ventricular activity and to a much lesser extent right ventricular activity, since the mass of the left ventricle is so much ...
John Wagner Beasley, E. Wayne Grogan
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General Approach to a Wide QRS Complex
Cardiac Electrophysiology Clinics, 2017Wide QRS complex is present when the normal activation pattern is modified by various mechanisms and clinical conditions. Correct interpretation is crucial for appropriate decision making. When approaching an electrocardiogram (ECG) with wide complex tachycardia, one must differentiate between ventricular tachycardia and supraventricular tachycardia ...
Roberto, De Ponti +3 more
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Parallel complexity of householder QR factorization
1996Gaussian Elimination with Partial Pivoting and Householder QR factorization are two very popular methods to solve linear systems. Implementations of these two methods are provided in state-of-the-art numerical libraries and packages, such as LAPACK and MATLAB. Gaussian Elimination with Partial Pivoting was already known to be P-complete.
Leoncini Mauro +2 more
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Supraventricular Arrhythmia With Abnormal QRS Complex
Archives of Internal Medicine, 1972Thus far, the discussion of supraventricular arrhythmia with abnormal QRS complex has included preexisting conduction defects, the preexcitation syndrome (Wolff-Parkinson-White syndrome), and functional bundle-branch block due to sudden shortening of cycle length, often combined with prolongation of preceding cycle; the latter is popularly called the ...
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A Digital Filter for the QRS Complex Detection
IEEE Transactions on Biomedical Engineering, 1979The five step digital filter has been developed which removes components other than those of QRS complex from the recorded electrocardiogram (ECG). The final step of the filter produces a square wave whose on-intervals correspond to the segments with QRS complexes in the original wave.
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