Sleep EEG Automatic Analysis

To an exact diagnosis statement a correct evaluation of sleep electroencephalogram is required. The sleep activity record is very long (a few hours). The evaluation of the sleep activity is time-consuming. The evaluation is provided by a doctor. In order to save time various automatic evaluations methods are developed. The one of methods includes dividing the signal into 30 seconds long sections. These sections are analyzed. The 30 seconds length sections are with adaptive segmentation reduced. From these segments mean amplitude, mean frequency, 1st and 2nd derivation are computed. The processing and the evaluation of the segments properties leads to definition of sleep status.