Fast focus using dual cameras
US11218626B2 · kind B2 · utility
1Cited by
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19Claims
0Family size
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Key dates
| Filing date | Jun 15, 2018 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Jun 15, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/45
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of focusing dual cameras including receiving a fixed focus image from a fixed focus camera module, receiving an auto focus image from an auto focus camera module, calibrating a lens distortion of the auto focus camera module, calibrating a geometric relation of the auto focus camera module and the fixed focus camera module, calculating a depth of focus difference between the fixed focus image and the auto focus image, estimating an auto focus position based on the depth of focus difference and setting the auto focus position based on the estimation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.