Title :
Fixed percentage of wavelet coefficients to be zeroed for ECG compression
Author :
Benzid, R. ; Marir, F. ; Boussaad, A. ; Benyoucef, M. ; Arar, D.
Author_Institution :
Dept. of Electron., Univ. of Batna, Algeria
fDate :
5/29/2003 12:00:00 AM
Abstract :
A new method for ECG compression is presented. After the pyramidal wavelet decomposition, the resultant coefficients are subjected to an iterative threshold until a fixed percentage target of wavelet coefficients to be zeroed is reached. Next, the lossless Huffman´s coding is used to increase the compression ratio. Quality preservation for good compression ratios is reported.
Keywords :
Huffman codes; data compression; electrocardiography; medical signal processing; signal reconstruction; wavelet transforms; ECG compression; ECG signal decomposition; MIT-BIH arrhythmia records; compression ratio; dichotomy algorithm; fixed percentage target; iterative threshold; linear quantisation; lossless Huffman coding; pyramidal wavelet decomposition; quality preservation; reconstructed signals; wavelet coefficients zeroing;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030560
