IMAGE ENCODING/DECODING METHOD AND APPARATUS

• Main Author: LIM, Sung Won
• Format: Patent
• Language: English; French; Korean
• Published: 19.10.2023
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

An image encoding/decoding method according to the present invention may comprise the steps of: generating a matching table including a plurality of candidates; and selecting one candidate from the matching table on the basis of a luma reconstructed sample in a luma block and deriving a prediction value of a chroma sample at the same location as the luma reconstructed sample on the basis of the selected candidate. Un procédé de codage/décodage d'image selon la présente invention peut comprendre les étapes consistant à : générer une table de correspondance comprenant une pluralité de candidats ; et sélectionner un candidat à partir de la table de correspondance sur la base d'un échantillon reconstruit de luminance dans un bloc de luminance et dériver une valeur de prédiction d'un échantillon de chrominance au même emplacement que l'échantillon reconstruit de luminance sur la base du candidat sélectionné. 본 발명에 따른 영상 부호화/복호화 방법은, 복수 후보들을 포함하는, 매칭 테이블을 생성하는 단계; 및 루마 블록 내 루마 복원 샘플을 기초로, 상기 매칭 테이블로부터 하나의 후보를 선택하고, 상기 선택된 후보를 기초로, 상기 루마 복원 샘플과 동일 위치인 크로마 샘플의 예측값을 유도하는 단계를 포함할 수 있다.