A Critical Review of Feature Extraction Techniques for ECG Signal Analysis

2021 ◽  
Author(s):  
Varun Gupta ◽  
Monika Mittal ◽  
Vikas Mittal ◽  
Nitin Kumar Saxena
Keyword(s):  
Feature Extraction ◽  
Critical Review ◽  
Signal Analysis ◽  
Ecg Signal ◽  
Extraction Techniques

A novel feature extraction-based ECG signal analysis

2021 ◽  
Author(s):  
Varun Gupta ◽  
Monika Mittal ◽  
Vikas Mittal ◽  
Arvind Kumar Sharma ◽  
Nitin Kumar Saxena
Keyword(s):  
Feature Extraction ◽  
Signal Analysis ◽  
Ecg Signal

Improved ECG Signal Analysis Using Wavelet and Feature Extraction

2007 ◽  
Vol 46 (02) ◽  
pp. 227-230 ◽  
Author(s):  
M. Jonkman ◽  
F. de Boer ◽  
A. Matsuyama
Keyword(s):  
Feature Extraction ◽  
Signal Analysis ◽  
Significant Variation ◽  
Wavelet Decomposition ◽  
Ecg Signal ◽  
Ecg Signals ◽  
Feature Vectors ◽  
Different Types ◽  
Before And After

Summary Objectives : Automatic detection of arrhythmias is important for diagnosis of heart problems. However, in ECG signals, there is significant variation of waveforms in both normal and abnormal beats. It is this phenomenon, which makes it difficult to analyse ECG signals. The aim of developing methodology is to distinguish between normal beats and abnormal beats in an ECG signal. Methods : ECG signals were first decomposed using wavelet transform. The feature vectors were then extracted from these decomposed signals as normalised energy and entropy. To improve the classification of the feature vectors of normal and abnormal beats, the normal beats which occur before and after the abnormal beats were eliminated from the group of normal beats. Results : With our proposed methods, the normal beats and abnormal beats formed different clusters of vector points. By eliminating normal beats which occur before and after the abnormal beats, the clusters of different types of beats showed more apparent separation. Conclusions : The combination of wavelet decomposition and the classification using feature vectors of the beats in ECG signals separate abnormal beats from normal beats. The elimination of the normal beats which occur before and after the abnormal beats succeeded in minimising the size of normal beats cluster.

scholarly journals A Survey on Classification algorithms of Brain Images in Alzheimer’s disease based on Feature Extraction techniques

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Ruhul Amin Hazarika ◽  
Arnab Kumar Maji ◽  
Samarendra Nath Sur ◽  
Babu Sena Paul ◽  
Debdatta Kandar
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Feature Extraction ◽  
Classification Algorithms ◽  
Extraction Techniques ◽  
Brain Images

scholarly journals Instrumental Odour Monitoring System Classification Performance Optimization by Analysis of Different Pattern-Recognition and Feature Extraction Techniques

Sensors ◽  
2020 ◽  
Vol 21 (1) ◽  
pp. 114
Author(s):  
Tiziano Zarra ◽  
Mark Gino K. Galang ◽  
Florencio C. Ballesteros ◽  
Vincenzo Belgiorno ◽  
Vincenzo Naddeo
Keyword(s):  
Pattern Recognition ◽  
Feature Extraction ◽  
Performance Optimization ◽  
Industrial Plant ◽  
Mathematical Treatment ◽  
Extraction Techniques ◽  
Peak Period ◽  
Linear Discriminant ◽  
Artificial Neural

Instrumental odour monitoring systems (IOMS) are intelligent electronic sensing tools for which the primary application is the generation of odour metrics that are indicators of odour as perceived by human observers. The quality of the odour sensor signal, the mathematical treatment of the acquired data, and the validation of the correlation of the odour metric are key topics to control in order to ensure a robust and reliable measurement. The research presents and discusses the use of different pattern recognition and feature extraction techniques in the elaboration and effectiveness of the odour classification monitoring model (OCMM). The effect of the rise, intermediate, and peak period from the original response curve, in collaboration with Linear Discriminant Analysis (LDA) and Artificial Neural Networks (ANN) as a pattern recognition algorithm, were investigated. Laboratory analyses were performed with real odour samples collected in a complex industrial plant, using an advanced smart IOMS. The results demonstrate the influence of the choice of method on the quality of the OCMM produced. The peak period in combination with the Artificial Neural Network (ANN) highlighted the best combination on the basis of high classification rates. The paper provides information to develop a solution to optimize the performance of IOMS.

ECG Signal Analysis for Classification of Congenital Heart Defects

2020 ◽  
Author(s):  
Muhammad Umar Khan ◽  
Sumair Aziz ◽  
Mumtaz Ch. Javeria ◽  
Anber Shahjehan ◽  
Zohaib Mushtaq ◽  
...  
Keyword(s):  
Congenital Heart Defects ◽  
Signal Analysis ◽  
Congenital Heart ◽  
Heart Defects ◽  
Ecg Signal

scholarly journals Comparison between different feature extraction techniques for audio-visual speech recognition

2007 ◽  
Vol 1 (1) ◽  
pp. 7-20 ◽  
Author(s):  
Alin G. Chiţu ◽  
Leon J. M. Rothkrantz ◽  
Pascal Wiggers ◽  
Jacek C. Wojdel
Keyword(s):  
Feature Extraction ◽  
Speech Recognition ◽  
Visual Speech ◽  
Extraction Techniques ◽  
Visual Speech Recognition
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