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18th Meeting: Teleconference, April 2020 2020-04-03 20:14
AHG9/AHG12: Moving joint chroma coding sign flag from picture header to slice header
Abstract
This contribution proposes to move ph_joint_cbcr_sign_flag from the picture header to the slice header. It is asserted that the proposed change enables encoders to set joint chroma coding residual sign adaptively in applications that perform subpicture extraction and merging.
JVET-R0150 AHG9/AHG12: Moving joint chroma coding sign flag from picture header to slice header [M. M. Hannuksela, J. Lainema (Nokia)]

This contribution proposes to move ph_joint_cbcr_sign_flag from the picture header to the slice header. It is asserted that the proposed change enables encoders to set joint chroma coding residual sign adaptively in applications that perform subpicture extraction and merging.

It was commented that coordinated encoding is assumed in the BEAM scenario, encoding settings are coordinated, and there are a number of other features that could hypothetically be different in different picture headers.

No action was thus taken on this.

References:
JVET-R0148
PATENTS:
US20150350684A1 0.71 2015-12-03 US10863182B2 0.34 2020-12-08 US10979727B2 0.32 2021-04-13 US20190268599A1 0.30 2019-08-29 US20170094288A1 0.28 2017-03-30 US11140417B2 0.26 2021-10-05 US9912942B2 0.22 2018-03-06 EP3422724B1 0.20 2024-05-01
Decisions
No action was thus taken on this.
Citation