Verfahren und Vorrichtung zur Eingeschränkten Ableitung Linearer Modellparameter in der Videocodierung

Details

Veröffentlichungs-Nr.

EP4742675

Anmeldetag

23. April 2019

Veröffentlichung

13. Mai 2026

Rechtsraum

EP

IPC

H04N19/593

Abstract

Methods and apparatus for cross-color LM (Linear Mode) Intra prediction are disclosed. According to one method, when a current top area or a current left area of the current block is across a restricted boundary, a current LM parameter set is derived based on reduced neighboring reconstructed areas. The reduced neighboring reconstructed areas comprise a reduced top area having less than N top lines or less than N left lines if the current top area or the current left area is across the restricted boundary. According to another method, if the current top area is across the restricted boundary, expanded left area is used for deriving LM parameter set and if the current left area is across the restricted boundary, expanded top area is used for deriving LM parameter set. A method for multi-LM mode is also disclosed for restricted boundaries.

Anmelder

Firma

HFI Innovation Inc.

Land

🇹🇼 Taiwan

Fachgebiete