Title :
On the Use of 2-D Coding Techniques for ECG Signals
Author :
Alexandre, Enrique ; Pena, Antonio ; Sobreira, Manuel
Author_Institution :
Univ. of Alcala, Madrid
Abstract :
This paper discusses the convenience of using two-dimensional (2-D) coding techniques for the compression of electrocardiogram (ECG) signals. These signals present a very clear periodicity that can be exploited by the use of a 2-D time/frequency transform to decorrelate it as much as possible. A brief theoretical approach is given to justify the use of this technique, and a comparison is made between a 2-D and a one-dimensional (1-D) uniform quantization scenarios. The influence of the error as well as the frame size on the estimation of the fundamental period is studied
Keywords :
data compression; discrete cosine transforms; electrocardiography; medical signal processing; quantisation (signal); time-frequency analysis; 2-D coding technique; 2-D time-frequency transform; discrete cosine transform; electrocardiogram signal compression; one-dimensional uniform quantization; Audio coding; Decorrelation; Discrete cosine transforms; Electrocardiography; Frequency; Image coding; Quantization; Signal to noise ratio; Sparse matrices; Two dimensional displays; Electrocardiogram (ECG) coding; two-dimensional (2-D) transforms;
Journal_Title :
Information Technology in Biomedicine, IEEE Transactions on
DOI :
10.1109/TITB.2006.874926
