Patent · US Active

Coefficient context modeling in video coding

US11113846B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

HULU, LLC · US

Inventors

Wenhao Zhang · Beijing, CN
Deliang Fu · Beijing, CN
Juncheng Ma · Beijing, CN
Chen Liu · Shanghai, CN

Key dates

Filing date	Aug 29, 2019
Grant date	Sep 7, 2021
Priority date	—
Expiry date	Dec 6, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/18
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

In some embodiments, a method determines a plurality of classes of bins that are used to determine a context model for entropy coding of a current block in a video. The method calculates a first value for a first class of bins in the plurality of classes of bins and calculates a second value for a second class of bins in the plurality of classes of bins. The first value for the first class of bins is weighted by a first weight to generate a weighted first value and the second value for the second class of bins is weighted by a second weight to generate a weighted second value. The method then selects a context model based on the first weighted value and the second weighted value.

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