Autofocus method of camera using face detection and apparatus for controlling the camera
US9936126B2 · kind B2 · utility
1Cited by
7References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 18, 2016 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Jul 18, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/675
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An autofocus method of a camera, having an actuator controlling the position of a lens in an open-loop mode, includes receiving and analyzing an image captured using the lens and generating a face detection signal indicating whether a face is detected based on the analysis result. The size of the face is calculated when the face is detected, and a start position of the lens is determined based on the size of the face. A focus position of the lens is sought based on the start position of the lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.