Title:
PREDICTION BLOCK GENERATION DEVICE, IMAGE ENCODER, IMAGE DECODER, AND PROGRAM
Document Type and Number:
Japanese Patent JP2023168518
Kind Code:
A
Abstract:
To improve prediction accuracy by properly deciding the weighting coefficient in CIIP.SOLUTION: A prediction block generation device which generates an intra prediction signal and a prescribed prediction signal by predicting a prediction object block obtained by dividing an image by intra prediction and prescribed prediction different from the intra prediction and outputs a prediction signal in the prediction object block by synthesizing the intra prediction signal and the prescribed prediction signal by weighting synthesis, comprises: a mode specification part which specifies an intra prediction mode of intra prediction applied to a peripheral block when there is the peripheral block applied with the intra prediction in the periphery of the prediction object block; and a weighting coefficient decision part which decides a weighting coefficient used for the weighting synthesis on the basis of the intra prediction mode specified by the mode specification part.SELECTED DRAWING: Figure 4
Inventors:
NEMOTO SHIMPEI
IWAMURA SHUNSUKE
ICHIGAYA ATSURO
IWAMURA SHUNSUKE
ICHIGAYA ATSURO
Application Number:
JP2023172326A
Publication Date:
November 24, 2023
Filing Date:
October 03, 2023
Export Citation:
Assignee:
JAPAN BROADCASTING CORP
International Classes:
H04N19/176; H04N19/105
Attorney, Agent or Firm:
Curie's Patent Attorney Corporation