Movement pattern measuring apparatus using EEG and EMG and method thereof

1. An apparatus for measuring movements of a user by using an electroencephalogram (EEG) sensor and an electromyogram (EMG) sensor, which comprising:

a sample pattern storing unit for storing one or more sample patterns which are obtained by patterning EEG waveforms and EMG values; a communication unit for receiving an EEG waveform and an EMG value of the user measured by the EEG and EMG sensors;

a pattern normalizing unit for selecting sample patterns with the highest similarity to the received user's EEG waveform and EMG value among the stored sample patterns, and for normalizing the received EEG waveform and EMG value so that their amplitudes and periods coincide with those of the selected sample patterns; a movement estimating unit for estimating movement of the user by inputting the normalized EEG waveform and EMG value in an artificial neural network algorithm;

a movement determining unit for determining the user's movement by applying a weight value of respective one of the EEG and EMG to each movement estimation value;

a noise eliminating unit for eliminating noise for eye movement by applying the EEG waveform and EMG value, received from the EEG sensor and EMG sensor, to an independent component analysis algorithm; and

a synchronization unit for synchronizing the normalized EEG waveform and the normalized EMG value with a time difference between the EEG waveform and EMG value measured by the EEG sensor and EMG sensor, wherein

the pattern normalizing unit normalizes the noise-eliminated EEG waveform and EMG value by using normalization ratios which are set with control ratios used for controlling the amplitudes and periods of the noise-eliminated EEG waveform and EMG value to coincide with those of the selected sample patterns or which are set by being externally inputted.

2. The apparatus of claim 1 , wherein the movement estimating unit estimates the user's movement by using the synchronized EEG waveform and EMG value at the current time, the synchronized EEG waveform and EMG value at time prior to the current time, and a movement estimation value outputted through the artificial neural network at a time prior to the current time, as input values of the artificial neural network algorithm.

3. The apparatus of claim 2 , wherein the sample pattern storing unit patterns the normalized EEG waveform and EEG value, and a movement estimation value outputted from the artificial neural network algorithm, and then stores them as one sample pattern.

4. The apparatus of claim 1 , wherein the movement determining unit sets a movement estimation value depending on the EMG values to have a weight value larger than that of a movement estimation value depending on the EEG waveforms.

5. A computer-implemented movement pattern measuring method using a movement pattern measuring apparatus which includes at least one of units being configured and executed by a controller using algorithm associated with least one non-transitory storage device for controlling the movement pattern measuring apparatus, the method, comprising:

storing one or more sample patterns which are obtained by patterning EEG waveforms and EMG values;

receiving an EEG waveform and an EMG value measured by an EEG sensor and an EMG sensor attached to a user;

selecting sample patterns with the highest similarity to the received user's EEG waveform and EMG value among the stored sample patterns, and normalizing the received EEG waveform and EMG value so that their amplitudes and periods coincide with those of the selected sample patterns;

estimating movement of the user by inputting the normalized EEG waveform and EMG value in an artificial neural network algorithm;

determining the user's movement by applying a weight value of respective one of the EEG and EMG to each movement estimation value;

eliminating noise for eye movement by applying the EEG waveform and EMG value, received from the EEG sensor and EMG sensor, to an independent component analysis algorithm; and

synchronizing the normalized EEG waveform and the normalized EMG value by using a time difference between the EEG waveform and EMG value measured by the EEG sensor and EMG sensor, wherein

the normalizing of the received EEG waveform and EMG value includes normalizing the noise-eliminated EEG waveform and EMG value by using normalization ratios which are set with control ratios used for controlling the amplitudes and periods of the noise-eliminated EEG waveform and EMG value to coincide with those of the selected sample patterns or which are set by being externally inputted.

6. The method of claim 5 , wherein the estimating of the user's movement includes estimating the user's movement by using the synchronized EEG waveform and EMG value at the current time, the synchronized EEG waveform and EMG value at time prior to the current time, and a movement estimation value outputted through the artificial neural network at a time prior to the current time, as input values of the artificial neural network algorithm.

7. The method of claim 6 , wherein the storing of one or more sample patterns includes patterning the normalized EEG waveform and EEG value, and a movement estimation value outputted from the artificial neural network algorithm, and storing them as one sample pattern.

8. The method of claim 5 , wherein the determining of the user's movement includes setting a movement estimation value depending on the EMG values to have a weight value larger than that of a movement estimation value depending on the EEG waveforms.