On the use of 2-D coding techniques for ECG signals.
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.
Alexandre
Enrique
E
Department of Signal Theory and Communications, University of Alcalá, Madrid, Spain. enrique.alexandre@uah.es
Pena
Antonio
A
Sobreira
Manuel
M
D000465:Algorithms; D044962:Data Compression / Q000379:methods*; D004562:Electrocardiography / Q000379:methods*; D012815:Signal Processing, Computer-Assisted