Video coding by adaptively controlling the interval between successive predictive-coded frames according to magnitude of motion
US6950465B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2000 |
| Grant date | Sep 27, 2005 |
| Priority date | — |
| Expiry date | May 18, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/172
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a video coding apparatus, coding/decoding circuitry provides motion-compensated inter-frame prediction coding on input frames by using reference frames so that the input frames are coded into an intra-frame coded picture, a predictive coded picture or a bi-directionally predictive coded picture and decoding the coded frames to produce reference frames. Decision circuitry determines the magnitude of motion of the input frames relative to the reference frames, determines the interval between successive frames of the predictive coded picture according to the determined magnitude of motion and reorders the input frames according to the determined interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.