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AHG10: Deblocking in RDO and beta offset minus 2 for VTM
Abstract
Deblocking can provide a significant subjective benefit for VVC. At the last meeting the deblocking parameters were changed to be aligned with ECM since they provided an objective benefit while keeping subjective quality. To further improve objective benefits with maintained subjective quality, this contribution proposes to enable deblocking in RDO in CTC for RA and LD in VTM. It is also proposed to allow for more deblocking in VTM than ECM by a less restrictive setting. The proponents claim that this provides an additional objective benefit in VTM together with deblocking in RDO. This is also claimed to be identical with the deblocking settings in the alternative configurations for VTM (high complexity setting).
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