Patent · US Active

Block vector prediction in video and image coding/decoding

US10469863B2 · kind B2 · utility

55Cited by

34References

22Claims

0Family size

Assignee

MICROSOFT TECHNOLOGY LICENSING, LLC · US

Inventors

Lihua Zhu · San Jose, US
Gary J. Sullivan · Bellevue, US
Jizheng Xu · Beijing, CN
Sridhar Sankuratri · Campbell, US
B. Anil Kumar · Saratoga, US
Feng Wu · Beijing, CN

Key dates

Filing date	Jan 3, 2014
Grant date	Nov 5, 2019
Priority date	—
Expiry date	Jan 3, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/91
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Innovations in the area of prediction of block vector (“BV”) values improve encoding or decoding of blocks using intra block copy (“BC”) prediction. For example, some of the innovations relate to use of a default BV predictor with a non-zero value. Other innovations relate to use of a selected one of multiple BV predictor candidates for a current block. Still other innovations relate to use of a skip mode in which a current intra-BC-predicted block uses a predicted BV value.

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