EP 4169253 A1 20230426 - METHODS AND DEVICES FOR CODING IMAGE DATA
Title (en)
METHODS AND DEVICES FOR CODING IMAGE DATA
Title (de)
VERFAHREN UND VORRICHTUNGEN ZUR CODIERUNG VON BILDDATEN
Title (fr)
PROCÉDÉS ET DISPOSITIFS DE CODAGE DE DONNÉES D'IMAGE
Publication
Application
Priority
- DE 102020207711 A 20200622
- EP 2021067009 W 20210622
Abstract (en)
[origin: WO2021259935A1] The present invention relates to methods and devices for coding image data, wherein a prediction error block is broken down into an element-based linear combination. The prediction error block contains prediction errors of a block of image data. The linear combination contains a first block of a prediction error and a second block of second prediction errors. The second block is transformed and coded together with the first block. In addition, the invention relates to methods and devices for decoding image data, wherein a bitstream contains a first block of prediction errors and a transformed second block of second prediction errors. Following a back-transformation of the transformed second block, a prediction error block is determined by a linear combination and contains the first block and the back-transformed second block.
IPC 8 full level
H04N 19/61 (2014.01)
CPC (source: EP US)
H04N 19/176 (2014.11 - US); H04N 19/60 (2014.11 - US); H04N 19/61 (2014.11 - EP); H04N 19/66 (2014.11 - US)
Citation (search report)
See references of WO 2021259935A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102020207711 B3 20210902; EP 4169253 A1 20230426; US 2023247226 A1 20230803; WO 2021259935 A1 20211230
DOCDB simple family (application)
DE 102020207711 A 20200622; EP 2021067009 W 20210622; EP 21736571 A 20210622; US 202118012072 A 20210622