Method and device for interpolating a pixel of an interline of a field
US7391476B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 4, 2005 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Sep 17, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/14
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and device for interpolating a pixel of an interline of a first field in a sequence of interlaced fields includes selecting at least one first pixel and one second pixel from scan lines of the first field adjacent the interline, and a third pixel from a second field temporally preceding or following the first field. The image position of the third pixel corresponds to the image position of the pixel to be interpolated. Also selected are fourth and fifth pixels which lie vertically adjacent the third pixel in the second field. A first filter value is generated by low-pass filtering the at least one first and second image information values. A second filter value is generated by high-pass filtering the third, fourth and fifth image information values. An image information value of the interpolated pixel is generated using the first and second filter values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.