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US 2018/0025241 A1Published application
A novel system and method for person identification and personality assessment based on eeg signal
OwnerPuneet Agarwal, Siddharth Panwar +2inventors
InventorsPUNEET AGARWAL, SIDDHARTH PANWAR, SHIV DUTT JOSHI, ANUBHA GUPTA
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Abstract
The present invention relates a novel system and method for person identification and personality assessment based on electroencephalography (EEG) signal. More particularly, this invention relates to a novel method of EEG recording and processing to map the inherent and unique properties of brain in the form of highly specific brain signature to be used as means for person identification and personality assessment.
Claims18
An EEG based personality assessment system for comprising:
- a. a means for sensing brainwaves of a user;
- b. a means for recording pattern of the brainwaves of the user;
- c. a means for processing the pattern recorded in step b., the means capable of performing an analysis of the brainwave pattern resulting into a four dimensional visualization;
- d. a means for representing four dimensional visualization of the entire EEG activity of the user's brain obtained in step c. as brain signature;
- and
- e. a means for securely storing the brain signature obtained in step d.;
- characterized in that the analysis of brainwave pattern is done by giving values for three parameters each for left and right side of the brain, namely, ρ, θ, and h, and plotting them with time to give the four dimensional visualization of brain activity.
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A method of EEG based authentication and assessment of a user comprising the steps of:
- a. recording EEG signal data to obtain a brainwave pattern;
- b. optionally grouping the signals obtained in step a. into at least two groups;
- c. breaking the signal data into frames;
- d. creating covariance matrix of each frame obtained in step c.;
- e. computing eigenvectors and eigenvalues;
- f. computing response vector covariance matrix from its eigenvectors and eigenvalues;
- g. reducing the covariance matrix to three dimensional spherical coordinate parameters;
- h. plotting the three dimensional parameters as a function of time to obtain four dimensional visualization as unique brain signature of the EEG signals of step a.;
- i. storing the brain signature for subsequent references;
- and
- j. authenticating the user on the basis of brain signature stored in step i.
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Dependencies are inferred from the claim text.