RU2023108014A

RU2023108014A - METHOD AND DEVICE FOR INTERNAL PREDICTION BASED ON INTERNAL SUBSEGMENTS IN IMAGE CODING SYSTEM

Info

Publication number: RU2023108014A
Application number: RU2023108014A
Authority: RU
Inventors: Хиеонгмоон ДЗАНГ
Original assignee: ЭлДжи ЭЛЕКТРОНИКС ИНК.
Priority date: 2019-03-22
Filing date: 2019-12-03
Publication date: 2023-04-19

Claims

1. Decoding equipment for decoding images, comprising:

Memory device; And

at least one processor coupled to the storage device, wherein the at least one processor is configured to:

receive image information including prediction mode information for the current block and intra-subsegment-based (ISP) mode-related information for the current block via a bit stream, wherein the ISP-related information is received based on the current block size and the maximum transformation block size ; And

decode the current block based on the prediction mode information and the ISP related information,

while the current block is also decoded based on:

extracting the intra prediction mode of the current block based on the prediction mode information; And

generating a prediction sample of the current block based on the intra prediction mode and ISP related information,

wherein the ISP-related information includes information on whether the ISP is applied to the current block and information on the split direction,

wherein the ISP related information is received based on the following condition related to the size of the current block to be executed, which is satisfied,

cbWidth <= MaxTbSizeY && cbHeight <= MaxTbSizeY,

wherein cbWidth is the width of the current box, cbHeight is the height of the current box, and MaxTbSizeY is the maximum size of the transform box.

2. Encoding equipment for encoding images, comprising:

Memory device; And

extracting the intra prediction mode of the current block;

extracting mode-related information based on internal sub-segments (ISP) for the current block based on the size of the current block and the maximum size of the transform block;

generating a prediction sample of the current block based on the intra prediction mode and the ISP related information;

forming a residual sample based on a predictive sample; And

encoding image information including prediction mode information regarding the intra prediction mode, ISP related information, and information regarding the residual sample,

cbWidth <= MaxTbSizeY && cbHeight <= MaxTbSizeY,

3. Image data communication equipment, comprising:

at least one processor configured to obtain a bitstream for an image, wherein the bitstream is generated based on extracting the intra prediction mode of the current block, extracting mode-related intra-sub-segment (ISP) information for the current block based on the size of the current block, and a maximum transform block size, generating a prediction sample of the current block based on the intra prediction mode and ISP related information, generating a residual sample based on the prediction sample, and encoding image information including prediction mode information about the intra prediction mode, ISP related information and information relative to the residual sample; And

a transmitter configured to transmit data containing a bit stream,

cbWidth <= MaxTbSizeY && cbHeight <= MaxTbSizeY,