Patent · US Active

Video frame encoding and decoding

US8218631B2 · kind B2 · utility

48Cited by

38References

19Claims

0Family size

Assignee

Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

Detlev Marpe · Berlin, DE
Heiko Schwarz · Panketal, DE
Thomas Wiegand · Berlin, DE

Key dates

Filing date	Oct 22, 2009
Grant date	Jul 10, 2012
Priority date	—
Expiry date	Aug 26, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/61
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A video frame arithmetical context adaptive encoding and decoding scheme is presented which is based on the finding, that, for sake of a better definition of neighborhood between blocks of picture samples, i.e. the neighboring block which the syntax element to be coded or decoded relates to and the current block based on the attribute of which the assignment of a context model is conducted, and when the neighboring block lies beyond the borders or circumference of the current macroblock containing the current block, it is important to make the determination of the macroblock containing the neighboring block dependent upon as to whether the current macroblock pair region containing the current block is of a first or a second distribution type, i.e., frame or field coded.

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