IMAGE ENCODING/DECODING METHOD AND APPARATUS

An image encoding/decoding method according to the present invention comprises the steps of: determining an intra prediction mode of a current block; selecting, on the basis of the intra prediction mode, a first reference sample belonging to a first reference sample line; and obtaining, on the basis...

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Bibliographic Details
Main Author LIM, Sung Won
Format Patent
LanguageEnglish
French
Korean
Published 07.12.2023
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Summary:An image encoding/decoding method according to the present invention comprises the steps of: determining an intra prediction mode of a current block; selecting, on the basis of the intra prediction mode, a first reference sample belonging to a first reference sample line; and obtaining, on the basis of the first reference sample, a prediction sample of the current block. Here, the prediction sample may be derived by selectively applying one of a first direction interpolation filter and a second direction interpolation filter to the first reference sample. Un procédé de codage et de décodage d'image selon la présente invention comprend les étapes consistant à : déterminer un mode de prédiction intra d'un bloc courant ; sélectionner, sur la base du mode de prédiction intra, un premier échantillon de référence appartenant à une première ligne d'échantillon de référence ; et obtenir, sur la base du premier échantillon de référence, un échantillon de prédiction du bloc courant. Ici, l'échantillon de prédiction peut être dérivé en appliquant sélectivement l'un parmi un premier filtre d'interpolation de direction et un second filtre d'interpolation de direction au premier échantillon de référence. 본 발명에 따른 영상 부호화/복호화 방법은, 현재 블록의 인트라 예측 모드를 결정하는 단계; 상기 인트라 예측 모드에 기반하여, 제1 참조 샘플 라인에 속하는 제1 참조 샘플을 선택하는 단계; 및 상기 제1 참조 샘플에 기반하여 상기 현재 블록의 예측 샘플을 획득하는 단계를 포함한다. 이때, 상기 예측 샘플은, 상기 제1 참조 샘플에 제1 방향 보간 필터 또는 제2 방향 보간 필터 중 하나를 선택적으로 적용하여, 유도될 수 있다.
Bibliography:Application Number: WO2023KR07397