Prediction of a movement vector of a current image partition having a different geometric shape or size from that of at least one adjacent reference image partition and encoding and decoding using one such prediction
US10051283B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2010 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Nov 27, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/593
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method for predicting a movement vector (MVp1) of a partition (P1) of a current image (IN) from a plurality of n reference movement vectors associated respectively with n reference partitions that have been previously encoded and decoded. For a spatial prediction of one such vector, when the geometric shape of the current partition is different from that of k adjacent reference partitions (pr1, pr2, . . . prk), with k≤n, the movement vector of the current image partition is determined from a function of at least one reference movement vector belonging to a set of k reference movement vectors associated respectively with k adjacent reference partitions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.