METHOD, DEVICE, AND COMPUTER PROGRAM FOR INTRA MODE CODING

Title:

METHOD, DEVICE, AND COMPUTER PROGRAM FOR INTRA MODE CODING

Document Type and Number:

Japanese Patent JP2023138834

Kind Code:

A

Abstract:

To provide a method and a device for controlling intra-prediction for decoding a video sequence.SOLUTION: The method includes the steps of: determining the ratio of width to the height of a coding unit, and adding a first wide angle towards the lower left side of the coding unit, a second wide angle towards the upper right side of the coding unit, and additional intra prediction modes corresponding to the first and second wide angles, respectively, to a table that contains an intra prediction mode corresponding to an intra prediction angle on the basis of the determined ratio being different from 1. The method includes the step of selecting one of the intra-prediction mode and the additional intra prediction modes added to the table for decoding the video sequence.SELECTED DRAWING: Figure 7

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Inventors:

ZHAO LIANG
ZHAO XIN
LI XIANG
LIU SHAN

Application Number:

JP2023131418A

Publication Date:

October 02, 2023

Filing Date:

August 10, 2023

Export Citation:

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Assignee:

TENCENT AMERICA LLC

International Classes:

H04N19/11; H04N19/157; H04N19/176

Attorney, Agent or Firm:

Tadashige Ito
Tadahiko Ito
Osamu Miyazaki

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