US 12,366,921 B2
Method for recognizing blink and eyeball movement based on EEG and system thereof
Laehyun Kim, Seoul (KR); Yaeeun Han, Seoul (KR); and Jihyeon Ha, Seoul (KR)
Assigned to AGENCY FOR DEFENSE DEVELOPMENT, Daejeon (KR); and KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, Seoul (KR)
Filed by AGENCY FOR DEFENSE DEVELOPMENT, Daejeon (KR); and KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, Seoul (KR)
Filed on Jan. 18, 2024, as Appl. No. 18/416,665.
Claims priority of application No. 10-2023-0007625 (KR), filed on Jan. 18, 2023.
Prior Publication US 2024/0241581 A1, Jul. 18, 2024
Int. Cl. G06F 3/01 (2006.01)
CPC G06F 3/015 (2013.01) 14 Claims
OG exemplary drawing
 
1. A method for recognizing, by a system for recognizing blink and eye movement, blink and eye movement based on electroencephalogram (EEG), the method comprising:
measuring a subject's EEG-based electrooculogram (EOG) signal using three electrodes connected to an EEG head cap;
performing potential blink detection and zero crossing detection using the EOG signal;
generating a plurality of parameters used for blink and eye movement classification using the EOG signal depending on presence or absence of the potential blink and the zero crossing; and
classifying the blink and up/down/left/right eye movements using the plurality of parameters,
wherein the subject's blink and up/down/left/right eye movements are classified using the EOG signals measured through the three electrodes, and some of the blink and up/down/left/right eye movements are classified by comparing waveforms of at least two of the EOG signals,
wherein the generating of the plurality of parameters includes:
determining whether there is a potential blink index; and
generating seven parameters when there is the potential blink index, or generating five parameters when there is no potential blink index.