Eye monitoring method with glare spot shifting

Details Eye monitoring method with glare spot shifting Eye monitoring method with glare spot shifting

2006-06-01

2009-08-25

Choi, William C (Department: 2873)

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Methods of use

C351S206000, C351S209000, C351S221000

Reexamination Certificate

active

07578593

ABSTRACT:
The face of a human subject is alternately illuminated by first and second sources of active illumination disposed above and below a video camera that captures images of the subject's face. Glare due to reflection of the active illumination from eyeglasses worn by the subject shifts up or down from one image to the next due to the different locations of the first and second sources. Eye detection and tracking routines ignore images in which the eye is occluded by eyeglass glare so that the glare does not interfere with the performance of the routines.

REFERENCES:
patent: 5598145 (1997-01-01), Shimotani
patent: 2002/0181774 (2002-12-01), Ishikura
patent: 2005/0270486 (2005-12-01), Teiwes et al.
EP Search Report dated Sep. 20, 2007.

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