A method for compression - reconstruction of ECG signals

A new method of data compression - reconstruction for ECG signals is presented. The method gives the ability (a) to control the final accuracy of the reconstructed signal before the transmission (or storage) of samples and (b) to control the compression ratio (CR) in order to obtain an optimum use of the channel capacity. The main advantage of the method was found to be the very strong improvement of the local re-construction during the active periods. Indeed, we can obtain CR values between 3 and 10 with local root mean square error (r.m.s.e.) improvement compared to the total r.m.s.e. value, by 85% during the active period.