Apparatus and method for detecting eye state
AssigneeLG Innotek Co., Ltd.
InventorDeepak Chandra Bijalwan
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Abstract
The present invention is directed to an eye state detecting apparatus and method, that is, including the step of preliminarily discriminating an eye opening and an eye closure by setting an automatic threshold from an eye region and thus dividing an image, and obtaining boundary points of divided zones and using an ellipse most properly equal to the boundary points and consecutively the step of in a case preliminarily discriminated as the eye closure, if an eye closure time is greater than a preset threshold time, the eye state is discriminated into an eye closure, and if not greater, discriminated into an eye blinking.
Claims29
A method of detecting an eye state into an eye opening, an eye closure and an eye blinking from a continuous image containing a face, comprising:
- (a) inputting a basic motionless image from the continuous image;
- (b) detecting a facial region from the basic motionless image;
- (c) detecting an eye region from the facial region;
- (d) preliminarily discriminating an eye opening and an eye closure by dividing images through the setting of an automatic threshold from the eye region and obtaining boundary points of the divided zones and using an ellipse most properly equal to the boundary points;
- and
- (e) discriminating as an eye closure if an eye closure time calculated by repeating the step (a) through the step (d) as much as a preset times is greater than a preset threshold time and discriminating as an eye blinking if it is not greater, in a case preliminarily discriminated in the eye closure in the step (d).
A method of detecting an eye state into an eye opening, an eye closure and an eye blinking from a continuous image containing a face, comprising:
- (a) inputting a basic, motionless image from the continuous image;
- (b) detecting a facial region and an eye region from the basic motionless image;
- (c) Log-Gabor filtering the detected eye region;
- (d) setting an automatic threshold into the eye region;
- (e) dividing binary images of the eye region and obtaining boundary points of divided zones;
- (f) equaling a most proper ellipse to the boundary points;
- (g) preliminarily discriminating an eye opening and an eye closure using the ellipse;
- and
- (h) discriminating as an eye closure if an eye closure time calculated by repeating the step (a) through the step (g) as much as a preset times is greater than a preset threshold time and discriminating as an eye blinking if it is not greater, in a case preliminarily discriminated in the eye closure in the step (g).
Dependencies are inferred from the claim text.