Fast camera auto-focus
US8194995B2 · kind B2 · utility
13Cited by
50References
13Claims
0Family size
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Key dates
| Filing date | Sep 30, 2008 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | Apr 6, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/67
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A camera auto-focuses using computed blur differences between images of a three-dimensional scene. The camera computes the blur difference between two images of the scene acquired at two different picture numbers. The camera uses the computed blur difference to predict a third picture number, where the camera uses the third picture number to auto-focus a camera lens on the scene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.