Patent · US Active

Method for intra refresh encoding of a plurality of image frames using convex and concave distribution functions

US11223834B2 · kind B2 · utility

0Cited by

1References

13Claims

0Family size

Assignee

Axis AB · SE

Inventors

Xing Fan · Beijing, CN
Maya Shah · Lund, SE
Mattias Pettersson · Lund, SE
Adam Schill Collberg · Lund, SE
Fredrik Pihl · Lund, SE
Magnus Söderdahl · Lund, SE
Peter Wilhelmsson · Lund, SE

Key dates

Filing date	Oct 14, 2020
Grant date	Jan 11, 2022
Priority date	—
Expiry date	Oct 14, 2040

Classification

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

Abstract

Video encoding, and specifically to a method and an encoder which can adapt the probability of intra refresh of image frame subdivisions based on a count of image frames since a previous refresh and modulated through convex or concave shaped distribution functions are set forth herein.

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