Patent · US Active

Block flipping and skip mode in intra block copy prediction

US10368091B2 · kind B2 · utility

52Cited by

18References

18Claims

0Family size

Assignee

MICROSOFT TECHNOLOGY LICENSING, LLC · US

Inventors

Bin Li · Beijing, CN
Jizheng Xu · Beijing, CN
Feng Wu · Beijing, CN

Key dates

Filing date	Mar 4, 2014
Grant date	Jul 30, 2019
Priority date	—
Expiry date	Jan 16, 2035

Classification

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

Abstract

Innovations in the area of encoding or decoding of blocks using intra block copy (“BC”) prediction improve coding efficiency for intra-BC-predicted blocks in many situations. For example, some of the innovations relate to block flipping in which an intra-BC-predicted block is flipped relative to a reference region, which can be indicated by a block vector (“BV”) value. Other innovations relate to signaling of a skip mode in which a current intra-BC-predicted block uses a signaled BV differential but lacks residual data.

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