Granted Patent B2

US 12,368,845 · App. 17/582,065 · Granted Jul 22, 2025

Inventors: Yung-Lyul Lee (Seoul, KR); Nam Uk Kim (Seoul, KR); Jun Woo Choi (Seoul, KR)

Assignee: INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY

H04N19/11H04N19/105H04N19/117H04N19/167H04N19/176H04N19/182H04N19/593H04N19/82

Abstract

Claims (28)

1. A video signal encoding method comprising:

determining an intra prediction mode of a current block;

obtaining a reference sample based on a neighboring sample of the current block;

obtaining a first prediction sample of the current block based on the reference sample and the intra prediction mode;

obtaining a second prediction sample of the current block by performing weighted filtering based on the reference sample and the first prediction sample; and

obtaining a reconstructed sample of the current block based on the second prediction sample,

wherein whether to performing the weighted filtering is determined based on the intra prediction mode,

wherein the obtaining the reference sample comprises filtering the neighboring sample of the current block, and

wherein whether to filter the neighboring sample of the current block is determined based on a width and a height of the current block.

2. A non-transitory computer-readable recording medium storing a bitstream which is generated by a video signal encoding method, the method comprising:

determining an intra prediction mode of a current block;

obtaining a reference sample based on a neighboring sample of the current block;

obtaining a first prediction sample of the current block based on the reference sample and the intra prediction mode;

obtaining a second prediction sample of the current block by performing weighted filtering based on the reference sample and the first prediction sample; and

obtaining a reconstructed sample of the current block based on the second prediction sample,

wherein whether to performing the weighted filtering is determined based on the intra prediction mode,

wherein the obtaining the reference sample comprises filtering the neighboring sample of the current block, and

wherein whether to filter the neighboring sample of the current block is determined based on a width and a height of the current block.

3. A video signal decoding method comprising:

determining an intra prediction mode of a current block;

obtaining a reference sample based on a neighboring sample of the current block;

obtaining a first prediction sample of the current block based on the reference sample and the intra prediction mode;

obtaining a second prediction sample of the current block by performing weighted filtering based on the reference sample and the first prediction sample;

obtaining a reconstructed sample of the current block based on the second prediction sample; and

filtering the reconstructed sample of the current block,

wherein whether to performing the weighted filtering is determined based on the intra prediction mode,

wherein the obtaining the reference sample comprises filtering the neighboring sample of the current block, and

wherein whether to filter the neighboring sample of the current block is determined based on a width and a height of the current block.

Priority Claims (1)

Continuity (3)

References Cited (17)