Method for extracting and identifying characteristics of electro-ocular signal
A technology of electro-oculogram signal and feature extraction, which is applied in the interdisciplinary field of biomedicine and informatics, can solve problems such as inability to identify electro-oculogram signals, difficulty in obtaining detection thresholds, and algorithm failure, and achieve high accuracy of electro-oculogram recognition and strong application value , the effect of improving the accuracy
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[0043] see figure 1 In this embodiment, the feature extraction and recognition of the electro-oculogram signal is composed of three stages: electro-oculogram signal preprocessing, electro-oculogram signal characteristic parameter extraction and electro-oculogram signal pattern recognition. Among them, the electrooculograph signal preprocessing stage is mainly to perform preprocessing operations such as endpoint detection and band-pass filtering on the electrooculograph signal to remove interference and reduce the amount of calculation during feature extraction; Carry out framing and windowing to realize the conversion of continuous electro-oculogram signals into multi-segment short-term signals, and extract the sequence of characteristic parameters that change with time; the stage of pattern recognition of electro-oculogram signals is to use the method of DTW dynamic time warping to input eye signals The time series of electrical feature vectors are compared with each template...
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