Autofocus system equipped with a face recognition and tracking function
US8643766B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2010 |
| Grant date | Feb 4, 2014 |
| Priority date | — |
| Expiry date | Jan 22, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An autofocus system which can prevent erroneous tracking of an unintended tracking target, is provided. In a recognition and tracking mode which uses an AF frame to automatically track a face of a specific person for which certification data is previously stored, a face of a specific person designated by an operator is detected by face authentication processing from a captured image obtained from a television camera. Thereafter, the face is detected from the captured image by a pattern matching processing in which an image of the face is used as a reference pattern for object tracking processing, and the AF frame is moved to the detected position. The face recognition processing is executed each time when the object tracking processing is executed a predetermined times, thereby preventing erroneous tracking by the object tracking processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.