Artifact removal from phase encoded images
US7961969B2 · kind B2 · utility
1Cited by
6References
25Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 20, 2007 |
| Grant date | Jun 14, 2011 |
| Priority date | — |
| Expiry date | Apr 13, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/73
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
PSF coding has become well known in recent years. Although it enables significant increases in the depth of field, defocus introduces artifacts in images that are a major detraction from the final image quality. A method is described that enables the deduction or defocus and consequently the removal of these artifacts. The principle of the disclosed techniques involves iteratively adjusting the restoration algorithm according to a chosen image metric and choosing the defocus parameter that yields the image the lowest level of artifact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.