Host: Japan Society for Fuzzy Theory and Intelligent Informatics (SOFT)
The authors measured electroencephalograms (EEGs) from subjects in imaging or recognizing several types of images presented on CRT. Each image consists of four types of line drawings of body part, tetrapod, home appliance, etc. The canonical discriminant analysis is applied to the single trial EEGs. Four channels of EEGs at the right frontal and temporal are used in the discrimination. They are Fp2, F4, C4 and F8 according to the international 10-20 system. Sampling EEGs were taken from 400ms to 900ms at 25ms intervals. Also, data were resampled -1ms and -2ms backward. The number of variates is twenty one by four; so the data were eighty four dimensional vectors and number of the data was three hundred and sixth. Results of the canonical discriminant analysis by use of so called jack knife method were greater than 95 %. These results are improved from the precedent our research.
