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17th Meeting: Brussels, January 2020 2020-01-10 16:17
AHG11: picture/slice level deblocking control flag for IBC
Authors: Xiaozhong Xu Tencent G. Li Tencent Xinwei Li Tencent Shan Liu Tencent
Abstract
In this contribution, a picture/slice level deblocking on/off control flag is suggested for the IBC mode. The claimed benefit of this flag is to turn on/off the deblocking operation for IBC coded samples with an encoder side choice for different contents.
Meeting Notes
JVET-Q0427 AHG11: Picture/slice level deblocking control flag for IBC [X. Xu, G. Li, X. Li, S. Liu (Tencent)]

In this contribution, a picture/slice level deblocking on/off control flag is suggested for the IBC mode. The claimed benefit of this flag is to turn on/off the deblocking operation for IBC coded samples with an encoder side choice for different contents.

Also the high-level control flag would imply low-level changes of the deblocking process depending on IBC mode, which would be undesirable. The main motivation is usage of IBC for screen content, which might anyway be better encoded in lower QP to preserve the quality (which would automatically reduce the blurring of the deblocking filter).

There may be sufficient options for an encoder to control the effect of the deblocking.

More study of this is needed.

References:
JVET-M0336 JVET-P0611 JVET-P2001
Cited:
JVET-Q0011
PATENTS:
20230093129 1.00 20250063156 1.00 WO/2023/043494 1.00 20210306669 0.34 20230013917 0.33 20210021841 0.32 WO/2021/194556 0.31 WO/2021/011545 0.30
ARCHIVE v3 :
JVET-Q0427-v1.pptx JVET-Q0427-v2.docx
Decisions
More study of this is needed.
Citation