公开(公告)号：US20240205458A1

公开(公告)日：2024-06-20

申请号：US18542850

申请日：2023-12-18

Applicant: GOOGLE LLC

Inventor： Onur Guleryuz ,  Zeyu Deng ,  Debargha Mukherjee ,  Lester Lu ,  Yue Chen

IPC: H04N19/61 ,  H04N19/105 ,  H04N19/12 ,  H04N19/124 ,  H04N19/13 ,  H04N19/172 ,  H04N19/176 ,  H04N19/42

CPC classification number: H04N19/61 ,  H04N19/105 ,  H04N19/12 ,  H04N19/124 ,  H04N19/13 ,  H04N19/172 ,  H04N19/176 ,  H04N19/42 ,  H04N19/70

Abstract: Transform prediction with parsing independent coding includes generating a reconstructed frame and outputting the reconstructed frame. Generating the reconstructed frame includes entropy decoding transform blocks for the reconstructed frame, entropy decoding decoded transform identifiers for the transform blocks, obtaining transform-specific probability distributions for available transforms, and, for a current transform block from the transform blocks, identifying a current remapped transform identifier from the decoded transform identifiers, identifying a current transform identifier in accordance with the current remapped transform identifier, the transform coefficients from the current transform block, and the transform-specific probability distributions, identifying a current transform in accordance with the current transform identifier; inverse transforming, in accordance with the current transform, the current transform block to obtain a current residual block and obtaining a current reconstructed block using the current residual block. Generating the reconstructed frame includes including the current reconstructed block in the reconstructed frame.