Computational imaging system
US8212914B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 21, 2010 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Jan 1, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/3016
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An imaging sub-system, a liquid crystal (LC) element, and a digital focus processor are provided. The LC element is placed in the light path of the imaging sub-system, functioning as the aperture of the imaging sub-system, and includes a periodically patterned electrode which is patterned according to a periodical modulation function and configured to blur an intermediate image captured by the imaging sub-system by applying a controllable voltage thereto. The digital focus processor is configured to deconvolute the periodical modulation function to remove the blur away from the intermediate image and determine an all-in-focus real image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.