Spatial resolution of video images
US7206027B2 · kind B2 · utility
15Cited by
13References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2002 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Jan 3, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T3/403
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method and a device to increase the resolution of an image by interpolating along edges of the image. Edges are detected and their direction is calculated (10). The interpolation (12) of new pixels is carried out along the direction of the edges. According to the invention, a pre-filter (8) is used with a high-pass filtering in the direction in which new pixels are interpolated, and a low-pass filtering in another direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.