Digital Process for the compression of EEG Signal

摘要

This Invention relates to Biomedical Engineering, and in particular with the digital processing of the electroencephalographic Signal.The Procedure allows the data compression of Digitized electroencephalograph signals with Compression rates above 5; useful in specifying and Computerized Medical EquipmentL Storage and / or transmission of the EEG Signal.It is based on the use of Wavelet Packet Transforms, TPO, for compression,With reducing the number of coefficients through comparison with thresholds and the subsequent Coding of the coefficients attached to an efficient representation of the coefficients equal to zero. The Reconstruction is achieved by a process of inverse Transformation.The Method provides a satisfactory quality level expressed in Values of percentage Root Mean Square difference of root, PRDWhich is an approach widely used in the literature on the subject, as well as from expert opinions that have evaluated subjectively results.Processing capabilities that are required for this procedure are moderate and can be met by Processors of low cost.The Method generally does not introduce significant Processing delays.