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13th Meeting: Marrakech, January 2019 2019-01-10 13:08
Non-CE6: Mismatch between text specification and reference software on the signalling root CBF
Abstract
In this contribution, it is reported that there is a mismatch between VVC Draft 3 and VTM-3.0 on signalling syntax element cu_cbf. In VVC Draft 3, cu_cbf is signalled for inter-coded blocks when cu_skip_flag is equal to 0. However, in VTM-3.0, cu_cbf is signalled for inter-coded blocks when merge_flag is equal to 0. It is reportedly shown that SW change reflecting the method described in the specification text increases overall BD-rate by 0.25%, 0.44% with 101%, 100% overall encoding time and 100%, 100% overall decoding time under Random Access (RA) and Low Delay B (LDB) configurations, respectively. Therefore, it is recommended to change the specification text to the method used in the reference software.
JVET-M0361 Non-CE6: Mismatch between text specification and reference software on the signalling root CBF [J. Jung, D. Kim, G. Ko, J. Son, J. Kwak (Wilus)]
Decisions
JVET-M0361 Non-CE6: Mismatch between text specification and reference software on the signalling root CBF [J. Jung, D. Kim, G. Ko, J. Son, J. Kwak (Wilus)]
Citation