Interaktion einer durch Quantisierung Eingeschränkten Korrektur mit Abhängiger Quantisierung

Details

Veröffentlichungs-Nr.

EP4787839

Anmeldetag

3. Februar 2025

Veröffentlichung

5. August 2026

Rechtsraum

EP

Abstract

A method and apparatus for Quantization constrained correction with dependent quantization are provided. In some embodiments, a reconstructed image block is determined from a prediction block and a reconstructed prediction residual, and a filtered version of the reconstructed image block is obtained. A quantization index of the dependent quantization is obtained for at least one transform coefficient of a transform block determined for a residual obtained from the filtered reconstructed image block. At least one correction bound is determined based on the quantization index, a bound offset and a quantization step size of the dependent quantization, and the at least one transform coefficient is corrected as a function of the at least one correction bound providing at least one corrected transform coefficient.

Anmelder

Firma

InterDigital CE Patent Holdings, SAS

Land

🇫🇷 Frankreich