Process for interpolating progressive frames
US5995154A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1996 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Dec 10, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/80
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A process for converting interlaced frames into progressive frames comprising a change of frame frequency by interpolation and motion compensation, wherein when a motion vector associated with a pixel to be interpolated is non-zero or when the motion vector is zero but the confidence accorded to this vector is less than a given threshold, the interpolation of the pixel of a frame situated temporally between two input frames is carried out by a median filtering pertaining to the values obtained by a first motion compensated linear temporal filter, a second motion compensated linear filter, and a motion compensated median temporal filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.