Method for coding a video image taking into account the part relating to a component of a movement vector
US9628819B2 · kind B2 · utility
1Cited by
7References
26Claims
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Key dates
| Filing date | Feb 26, 2004 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Jul 10, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The following steps are carried out in the inventive method: estimation of movement between a current moment corresponding to the current image and a reference moment corresponding to a reference image in order to provide a movement vector, an entropic coding for a high spatial frequency signal relating in the current image, taking into account a temporal context based on the estimation of a movement, one of the parameters used to calculate the temporal context being the parity of a component of the movement vector. Applications are related to video compression with temporal prediction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.