Method of and apparatus for detecting a face-like region and observer tracking display
US6504942B1 · kind B1 · utility
208Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1999 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Jan 13, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/161
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of detecting a face-like region of a colour image, comprises reducing the resolution of the colour image by averaging the saturation to form a reduced resolution image and searching for a region of the reduced resolution image. The searched region has, in a predetermined shape, a substantially uniform saturation which is substantially different from the saturation of the portion of the reduced resolution image surrounding the predetermined shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.