Patent · US Active

Systems and methods for processing a block of a digital image

US10742976B2 · kind B2 · utility

0Cited by

4References

22Claims

0Family size

Assignee

Huawei Technologies Co., Ltd. · CN

Inventors

Itsik Dvir · Haifa, IL
Natan Peterfreund · Munich, DE
Dror Irony · Munich, DE
David Drezner · Raanana, IL

Key dates

Filing date	May 12, 2017
Grant date	Aug 11, 2020
Priority date	—
Expiry date	Jun 1, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/157
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

There is provided an apparatus, methods, to generate a set of transform coefficients for coding a block in a frame or portion thereof, comprising: a media encoder coupled to a data interface adapted to receive a frame or portion thereof, the media encoder is adapted to: select a rotational symmetry mask for the block from a plurality of rotational symmetry masks which define a plurality of different rotational symmetries in a multi dimensional space having a size and a shape as the block; split the block to two complementary portions based on the rotational symmetry mask; generate a pair of rotational symmetry blocks each having one of the two complementary portions; and compute at least one transform coefficient for at least one member of the pair of rotational symmetry blocks.

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