公开(公告)号：US20190158878A1

公开(公告)日：2019-05-23

申请号：US16092359

申请日：2017-04-05

Applicant: B<>COM

Inventor： Pierrick Philippe ,  Victorien Lorcy ,  Pierre Castel

IPC: H04N19/625 ,  H04N19/184 ,  H04N19/119

CPC classification number: H04N19/625 ,  H04N19/119 ,  H04N19/122 ,  H04N19/147 ,  H04N19/176 ,  H04N19/184

Abstract: A method for decoding a current block of a digital image. The method includes: decoding coefficients of the current block; and transforming the current block into a decoded block, by implementing a first sub step to produce an intermediate block, that applies to the column and row vectors of the current block, and a second substep to produce a block of pixels that applies to the row and column vectors of the intermediate block, resulting from the first substep; and rebuilding the image from the decoded block. At least one of the first and second substeps includes, for an input row or column vector: forming a first subvector of size K

公开(公告)号：US10771817B2

公开(公告)日：2020-09-08

申请号：US16092359

申请日：2017-04-05

Applicant: B<>COM

Inventor： Pierrick Philippe ,  Victorien Lorcy ,  Pierre Castel

IPC: H04N19/625 ,  H04N19/176 ,  H04N19/122 ,  H04N19/147 ,  H04N19/119 ,  H04N19/184

Abstract: A method for decoding a current block of a digital image. The method includes: decoding coefficients of the current block; and transforming the current block into a decoded block, by implementing a first sub step to produce an intermediate block, that applies to the column and row vectors of the current block, and a second substep to produce a block of pixels that applies to the row and column vectors of the intermediate block, resulting from the first substep; and rebuilding the image from the decoded block. At least one of the first and second substeps includes, for an input row or column vector: forming a first subvector of size K