Artifact removal from phase encoded images
US8369642B2 · kind B2 · utility
3Cited by
14References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2009 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | Dec 7, 2031 |
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 or artifact 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.