Simple method for calculating camera defocus from an image scene
US7990462B2 · kind B2 · utility
2Cited by
31References
24Claims
0Family size
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Key dates
| Filing date | Oct 15, 2009 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Oct 15, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/673
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An imaging acquisition system that generates a picture depth from an auto focus curve generated from picture of a three dimensional spatial scene is described. The auto focus curve comprises a step edge. The system generates the depth based on the step edge and a reference auto focus normalization curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.