Method and apparatus for improving conversion from SD to HDTV
US6657677B1 · kind B1 · utility
10Cited by
14References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2000 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Aug 28, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20192
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Image enhancement is achieved by a combination of linear and non-linear techniques. The linear technique is preferably peaking, while the non-linear techniques is preferably LTI. The peaking is applied to non-edge areas of the image. The LTI is applied to edge areas of the image. LTI is of the sub-pixel variety. The image enhancement device is preferably part of a device for converting standard definition to high definition signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.