Method and apparatus for improved image interpolation
US6832009B1 · kind B1 · utility
45Cited by
11References
35Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 24, 1999 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | Sep 24, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T3/403
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for image interpolation provides a simple method that can up-scale an image in various scale ratios, including fractional scaling ratios, and can yield a sharp image with reduced unpleasant visual artifacts. An embodiment uses a power weight function that is gradient dependent and uses a function that has a linear dependence on the distance to compute interpolated pixels. A further embodiment uses a power that can be adapted according to the local contrast of edges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.