Patent · US Active

Methods of video picture coding with sub-block merge simplification and related apparatuses

US11381807B2 · kind B2 · utility

0Cited by

1References

8Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Ruoyang Yu · Täby, SE
Kenneth Andersson · Gävle, SE
Du LIU · Solna, SE

Key dates

Filing date	Nov 20, 2019
Grant date	Jul 5, 2022
Priority date	—
Expiry date	Nov 20, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/70
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

There are provided mechanisms for temporal motion vector prediction of a current picture in a series of pictures of a video sequence. The method comprises determining, for a current block of the current picture, whether any one of: left, top, top-right and left-bottom spatial neighboring blocks of the current block in the current picture uses a collocated picture as a reference picture. The method further comprises, when the determination is that one of the left, top, top-right and left-bottom spatial neighboring block uses a collocated picture as a reference picture, using a motion vector of the one of the spatial neighboring blocks as a temporal vector of the current block.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.