Method and apparatus for video and image deinterlacing and format conversion
US7170561B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2003 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | Apr 28, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/012
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for deinterlacing a picture is disclosed. The method generally includes the steps of (A) calculating a plurality of differences among a plurality of current samples from a current field of the picture, the differences being calculated along a plurality of line segments at a plurality of angles proximate a particular position between two field lines from the current filed, (B) generating a first sample at the particular position by vertical filtering the current field in response to the differences indicating that the particular position is a non-edge position in the picture and (C) generating a second sample at the particular position by directional filtering the current field in response to the differences indicating that the particular position is an edge position in the picture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.