Title :
Comparison between Legendre moments and DCT in ECG compression
Author :
Kwan, Ban-Hoe ; Paramesran, Raveendran
Author_Institution :
Dept. of Electr. Eng., Malaya Univ., Kuala Lumpur, Malaysia
Abstract :
In this paper, a comparison is made between two techniques used in ECG (electrocardiogram) compression. These two techniques are Legendre moments that based on orthogonal polynomials and DCT (discrete cosine transform), one of the common used techniques in ECG compression. With sampling rate of 256 Hz and compression ratio 5:1, experimental results show that the reconstructed signals obtained by using Legendre moments has lower error than by using DCT. Besides that, compression using Legendre moments can filter out the noise in the original signals. The error between the original ECG signals and reconstructed ECG signals is measured using RMSE ( root mean square error).
Keywords :
Legendre polynomials; data compression; discrete cosine transforms; electrocardiography; mean square error methods; medical signal processing; signal reconstruction; DCT; ECG compression; Legendre moments; RMSE; discrete cosine transform; electrocardiogram compression; orthogonal polynomials; root mean square error; signals reconstruction; Biomedical imaging; Data compression; Discrete cosine transforms; Electrocardiography; Filters; Image reconstruction; Image storage; Polynomials; Root mean square; Sampling methods;
Conference_Titel :
TENCON 2004. 2004 IEEE Region 10 Conference
Print_ISBN :
0-7803-8560-8
DOI :
10.1109/TENCON.2004.1414383
