Bildcodierungs-/-Decodierungsverfahren, Aufzeichnungsmedium mit Darauf Gespeichertem Bitstrom und Verfahren zur Übertragung eines Bitstroms

Details

Veröffentlichungs-Nr.

EP4742665

Anmeldetag

5. Juli 2024

Veröffentlichung

9. Januar 2025

Rechtsraum

EP

Abstract

An image decoding method performed by an image decoding apparatus according to one aspect of the present disclosure may include obtaining a neural-network post-filter characteristics (NNPFC) supplemental enhancement information (SEI) message and a neural-network post-filter activation (NNPFA) SEI message; determining at least one neural-network to be used as a neural-network post-filter (NNPF) based on the NNPFC SEI message; and determining whether activating a target NNPF to be applied to a current picture or not based on the NNPFA SEI message, wherein the NNPFA SEI message includes target identification information and target base flag information, wherein the target NNPF is determined based on the target identification information and the target base flag information, wherein based on the target base flag information not indicating that the target NNPF is a base NNPF, there is at least one NNPFC SEI message, that precedes the NNPFA SEI message in decoding order, with indentification information equal to the target identification information and base flag information having a value equal to a value of the target base flag information.

Anmelder

Firma

LG Electronics Inc.

Land

🇰🇷 Südkorea