Patent · US Active

Systems and methods for mask based processing of a block of a digital image

US10602186B2 · kind B2 · utility

0Cited by

4References

13Claims

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	Mar 24, 2020
Priority date	—
Expiry date	Sep 21, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/182
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

There is provided an apparatus for generating a set of transform coefficients of a block in a frame or portion thereof. The apparatus includes a media encoder coupled to a data interface configured to receive a frame or portion thereof. The media encoder is configured to: designate a rotational symmetry mask having a size and a shape as the block partitioned in the frame or portion thereof for processing the block; split the block to two complementary portions using the rotational symmetry mask; generate a pair of rotational symmetry blocks each having one of the two complementary portions; and compute a transform coefficient for each member of the pair of rotational symmetry blocks.

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