Patent ID: 11861916
Assignee: YAZAKI CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 17:
18. The non-transitory machine-readable storage medium as recited in claim 14, wherein computing the eye openness measure of the eye of the driver comprises:
generating an upper eyelid contour of the eye and a lower eyelid contour of the eye based on the image data representing images of the eye;
identifying a plurality of landmarks on each of the upper eyelid contour and the lower eyelid contour;
defining a plurality of triangles, such that each of the plurality of triangles has vertices formed by a different 3-tuple of landmarks among the plurality of landmarks;
computing interior angles of the plurality of triangles; and
computing the eye openness measure of the eye as a function of the interior angles.