Adaptive autofocusing system
US10158796B2 · kind B2 · utility
0Cited by
8References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 27, 2016 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | May 27, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/36
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a phase-detection autofocus system using a single two-dimensional (2D) image sensor as an autofocus sensor. This allows for a number of novel functionalities such as calibration by adaptive selection of pixels for the autofocus collection zone, dynamically optimization of the collection zone for various scene and lightning conditions, as well as the use of 2D phase signals in the cross-correlation. This freedom in selecting which pixels to use gives rise to an equivalent freedom for the focus points presented to the user, which can be created, moved and scaled according to the conditions and the scene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.