Patent · US Active

Method for producing video coding and programme-product

US11172228B2 · kind B2 · utility

0Cited by

14References

8Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Gero Bäse · Birkenfeld, DE
Norbert Oertel · Landshut, DE

Key dates

Filing date	Nov 20, 2020
Grant date	Nov 9, 2021
Priority date	—
Expiry date	Nov 20, 2040

Classification

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

Abstract

According to the invention, there are provided sets of contexts specifically adapted to encode special coefficients of a prediction error matrix, on the basis of previously encoded values of level k. Furthermore, the number of values of levels other than 0 is explicitly encoded and numbers of appropriate contexts are selected on the basis of the number of spectral coefficients other than 0.

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