Eye opening detection system and method of detecting eye opening
US8435188B2 · kind B2 · utility
12Cited by
1References
15Claims
0Family size
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Key dates
| Filing date | Nov 6, 2007 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Aug 3, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K28/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An eye opening detection system that includes an imaging mechanism that captures an image of the face of a detected subject, an edge extraction mechanism that extracts the edge of the image captured, and an upper and lower eyelid detection mechanism that detects the upper and lower eyelids of the detected subject according to the edge extracted, and that detects the eye opening of the detected subject with reference to a detected distance between the upper and lower eyelids. The upper and lower eyelid detection detects the upper eyelid and detects the lower eyelid with reference to the upper eyelid detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.