نتایج جستجو برای: ecg signal

تعداد نتایج: 439386  

2014
Gautam Chouhan Ranjit Kaur

1&2 Department of Electronics and Communication 1&2 Punjabi University 1&2 Rajpura Road, Patiala 1&2 INDIA Abstract:Noisy Electrocardiogram (ECG) signal can mask some of the important features of the original ECG signal. Therefore, it is necessary to remove the noise for proper analysis of the ECG signal. In this paper, the use of Kohonen Neural Network (KNN) for automatically identifying the c...

2017
Keerthi G Reddy P A Vijaya

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...

2014
Duong Trong Luong Nguyen Duc Thuan Trinh Quang Duc

Electrocardiographic (ECG) signals in measurements are often contaminated with different types of noises in which include baseline noise. In case of the frequency of baseline noise is greater or smaller than frequency of the ECG signal, it is easy to filter the baseline noise from ECG signal by using filtered methods in frequency domain. In contrast, if frequency of baseline noise and frequency...

2015
Shalini Sahay A. K. Wadhwani Sulochana Wadhwani S. Z. Mahmoodabadi A. Ahmadian M. D. Abolhasani Juan Pablo Martínez Rute Almeida Salvador Olmos Ana Paula Rocha Pablo Laguna Krishna Prasad Cuiwei Li Chongxun Zheng Changfeng Tai Felipe E. Olvera

ECG Feature Extraction plays a significant role in diagnosing most of the cardiac diseases. One cardiac cycle in an ECG signal consists of the P-QRS-T waves. This feature extraction scheme determines the amplitudes and intervals in the ECG signal for subsequent analysis. The amplitudes and intervals value of P-QRS-T segment determines the functioning of heart of every human. Recently, numerous ...

2012
Jeong Yup Han Su Kyung Lee Hong Bae Park

In this paper, we propose a method to reduce the various kinds of noise while gathering and recording the electrocardiogram (ECG) signal. Because of the defects of former method in the noise elimination of ECG signal, we use translation invariant (TI) multiwavelet denoising method to the noise elimination. The advantage of the proposed method is that it may not only remain the geometrical chara...

2017
Udit Satija Barathram Ramkumar M. Sabarimalai Manikandan

Automatic electrocardiogram (ECG) signal enhancement has become a crucial pre-processing step in most ECG signal analysis applications. In this Letter, the authors propose an automated noise-aware dictionary learning-based generalised ECG signal enhancement framework which can automatically learn the dictionaries based on the ECG noise type for effective representation of ECG signal and noises,...

2015
Onder Yakut Serdar Solak

Measuring the Electrocardiogram (ECG) signal is an essential process for the diagnosis of the heart diseases. The ECG signal has the information of the degree of how much the heart performs its functions. In medical diagnosis and treatment systems, Decision Support Systems processing the ECG signal are being developed for the use of clinicians while medical examination. In this study, a modular...

2015
P Sri Lakshmi V Lokesh Raju

Electrocardiogram (ECG) is a non-invasive tool that monitors the electrical activity of the heart. An ECG signal is highly prone to the disturbances such as noise contamination, artifacts and other signals interference. So, an ECG signal has to be de-noised so that the distortions can be eliminated from the original signal for the perfect diagnosing of the condition and performance of the heart...

2012
Jarno M.A. Tanskanen Jari J. Viik

Electrocardiogram (ECG) signal processing aims basically 1) at artifact reduction to make the ECG signals cleaner and better interpretable by human or machine observers, 2) at revealing aspects not immediately observable in plain measured ECG signals even after artifact reduction, or 3) at diagnostics decision support and automated ECG signal interpretation, including classification of ECG sign...

Journal: :IEEE Access 2021

Over the years, researchers have studied evolution of Electrocardiogram (ECG) and complex classification cardiovascular diseases. This review focuses on ECG covers most recent signal processing schemes with milestones over last 150 years systematically. Development phases ECG, leads, portable monitors, Signal Processing Complex Transformations are discussed. paper summarizes development feature...

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