Patent · US Active

Method and apparatus for video coding

US8111748B2 · kind B2 · utility

2Cited by

10References

4Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventor

André Kaup · Hohenkirchen, DE

Key dates

Filing date	Jul 20, 2009
Grant date	Feb 7, 2012
Priority date	—
Expiry date	Mar 25, 2030

Classification

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

Abstract

In uniform superposition of two predictions toward a weighted superposition, such as in coding B frames, weighting is based on reliability of a reference picture used for determination of the prediction. Since there is a relationship between the reliability and the respective quantization parameter, coupling to the quantization parameter that is also known in the receiver also can be effected advantageously.

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