Electrocardiogram (ECG) is generally used for diagnosis of cardiovascular abnormalities and disorders. An efficient method for analysing the ECG signal towards the detection of heart rate (HR) and ischemic episodes follows mainly five stages: pre-processing, feature extraction, heart rate detection, beat classification and ischemic episode recognition. The heart rate is calculated using the ext...

Heart rate measurement employing photoplethysmography (PPG) is a prevalent technique for wearable devices. However, the acquired PPG signal often contaminated with motion artifacts, which need to be accurately removed. In cases where and accelerometer (ACC) spectra overlap at actual heart rate, traditional discrete Fourier transform (DFT) algorithms fail compute accurately. This study proposed ...

• We were able to evaluate autonomic nervous activity using near-infrared spectroscopy. Heartbeat-related signals extracted from the signal-processed total hemoglobin data correlated well with R-R intervals. Heart-rate variability parameters had a high correlation between spectroscopy and electrocardiogram.. Near-infrared (NIRS) is widely used for brain-function imaging, but raw signal also enc...

A novel method of detecting mechanical movement of the heart, Mechanocardiography (MCG), with no connection to the subject's body is presented. This measurement is based on radar technology and it has been proven through this research work that the acquired signal is highly correlated to the phonocardiograph signal and acceleration-based ballistocardiograph signal (BCG) recorded directly from t...

The Quantitative seismocardiography (Q-SCG) opens a new field of cardiovascular dynamics examination. Cardiac ejection of blood into the aorta generates a reaction force on the body that can be measured externally via the Q-SCG. Systolic forces as well as heart rate variability in relation to changes in external stimuli are registered. Q-SCG probably offers a more complex view of both isotropic...

Photoplethysmography is a simple way for heart rate detection. However due to low level of detected signal, easily prone to motion artifacts and noise. In this paper DWT method is used to reduce the effect of noise, thereby calculate the heart rate. A comparative study of detecting heart rate using different mother wavelet is also discussed. Keywords— Heart beats, ECG, Photoplethysmography, Pea...

parameter that gives the correct assessment regarding the functioning of the heart. One cardiac cycle in an ECG signal consists of the PQRST waves. This paper presents the collection of ECG signal from Database, filtering and processing of ECG signal, feature extraction, detection of P, Q, R, S and T values of an ECG signal and the heart rate. One of the important cardiovascular disease is arrh...