Smile detection systems and methods
US8983202B2 · kind B2 · utility
2Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2010 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Jan 9, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/175
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods of smile detection are disclosed. An exemplary method comprises generating a search map (400) for a subset of an image (300). The method also comprises identifying a plurality of candidates (400a-f) representing mouth corners. The method also comprises generating parabolas (410) between each pair of candidates representing mouth corners. The method also comprises analyzing contour of at least one of the parabolas to determine whether the mouth curves substantially upward to form a smile or curves substantially downward to form a frown.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.