Auto-focus method and apparatus and electronic device
US10129455B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2014 |
| Grant date | Nov 13, 2018 |
| Priority date | — |
| Expiry date | Sep 30, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30201
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An auto-focus method including at a same moment, collecting a first image of a first object using a first image shooting unit, collecting a second image of the first object using a second image shooting unit, calculating M pieces of first depth information of M same feature point pairs in corresponding areas in the first image and the second image, determining whether confidence of the M pieces of first depth information is greater than a threshold, obtaining focusing depth information according to N pieces of first depth information in the M pieces of first depth information when the confidence of the M pieces of first depth information is greater than the threshold, obtaining a target position of a first lens of the first image shooting unit according to the focusing depth information, and controlling the first lens to move to the target position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.