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16th Meeting: Geneva, October 2019 2019-09-18 09:28
CE5-1.2: Consistent chroma deblocking
Authors: Jizheng Xu ByteDance Jiayi Wang ByteDance Weijia Zhu ByteDance Li Zhang ByteDance Kai Zhang ByteDance H. Liu ByteDance Zhipin Deng ByteDance
Abstract
This contribution presents the results of CE5-1.2. It is asserted that the deblocking processes for Cb and Cr components are unified so that Cb and Cr components can be processed together. Simulation results reportedly show that the objective performance impact is negligible.
Meeting Notes
JVET-P0061 CE5-1.2: Consistent chroma deblocking [J. Xu, J. Wang, W. Zhu, L. Zhang, K. Zhang, H. Liu, Z. Deng (Bytedance)]

Proposal in this sub-CE investigates changes to simplify the chroma deblocking filter.

Test

Proponent(s)

Cross-checker(s)

CE5-1.2

Jizheng Xu

xujizheng@bytedance.com

JVET-P0061

Daniel Luo

jiancong.luo@alibaba-inc.com

Description of technologies in CE5-1.2

CE5-1.2 Aligning deblocking chroma decisions JVET-P0061

In the current VVC design, when one side of the chroma blocks is of intra, the boundary strength is set to 2. Otherwise, when one chroma block has non-zero transform coefficients, the boundary is set to 1. Thus, it is possible that the bS=1 for Cb and bS=0 for Cr. The test sets bS=1 for both Cb and Cr when one component has non-zero transform coefficients at least.

Performance of the proposal on HDR material is also to be tested.

References:
JVET-O2001
Cited:
JVET-P0025
PATENTS:
KR20250003439A 0.34 2025-01-07 US11973939B2 0.32 2024-04-30 US20250193381A1 0.30 2025-06-12 US10715798B2 0.28 2020-07-14 CN114554199B 0.26 2023-11-10 US9241168B2 0.24 2016-01-19 EP2837186B1 0.22 2018-08-22 US10230979B2 0.20 2019-03-12
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Decisions
Performance of the proposal on HDR material is also to be tested.
Citation