Interprädiktionsverfahren und -Vorrichtung auf der Basis von Dmvr und Bdof

Details

Veröffentlichungs-Nr.

EP4765816

Anmeldetag

11. Februar 2020

Veröffentlichung

24. Juni 2026

Rechtsraum

EP

IPC

H04N19/523

Abstract

An image decoding method according to the present document is characterized in that: decoder-side motion vector refinement (DMVR) is applied to derive refined L0 and L1 motion vectors on the basis of LO and Ll motion vectors of the current block; prediction samples of the current block are derived on the basis of LO prediction samples derived on the basis of the refined LO motion vector and L1 prediction samples derived on the basis of the refined Ll motion vector; and recovery samples of the current block are generated on the basis of the prediction samples, wherein the L0 prediction samples are derived on the basis of an L0 reference picture and the refined LO motion vector, the L1 prediction samples are derived on the basis of an L1 reference picture and the refined L1 motion vector, and in the step for deriving the prediction samples, whether to apply a bidirectional optical flow (BDOF) process is determined on the basis of whether a first POC difference between the current picture and the L0 reference picture and a second POC difference between the current picture and the L1 reference picture are the same.

Anmelder

Firma

LG Electronics Inc.

Land

🇰🇷 Südkorea

Fachgebiete