Method and system for generating an entirely well-focused image of a large three-dimensional scene
US8331627B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2008 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Sep 25, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10056
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system for generating an entirely well-focused image of a three-dimensional scene. The method comprises the steps of a) learning a prediction model including at least a focal depth probability density function (PDF), h(k), for all depth values k, from historical tiles of the scene; b) predicting the possible focal surfaces in subsequent tiles of the scene by applying the prediction model; c) for each value of k, examining h(k) such that if h(k) is below a first threshold, no image is acquired at the depth k′ for said one tile; and if h(k) is above or equal to a first threshold, one or more images are acquired in a depth range around said value of k for said one tile; and d) processing the acquired images to generate a pixel focus map for said one tile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.