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CE2: SAO modification (CE2.3.4)
Abstract
This contribution presents some modifications of the SAO in VTM1.0. These modifications are firstly presented in JVET-J0024[1] and then further studied in the CE2[2]. Firstly, the SAO parameter regions don’t align with CTU in this contribution but are shifted from the CTU to the left and up by four pixels. Secondly, the classification condition of EO are modified by adding an offset and the range of EO offset is changed as well. Thirdly, in BO mode, the offset bands are not signaled but fixed to the extreme bands and the offsets to be added are quantized to save the bits. All the individual modifications are tested in this contributions and results are reported.
JVET-K0176 CE2: SAO modification (CE2.3.4) [J. Chen, K. Choi, C. Kim (Samsung)]
References:
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anchor_SAO=0_vs_CE2-3.4.a (EO classifiation).xlsm
anchor_SAO=0_vs_CE2-3.4.b (BO offset quantization).xlsm
anchor_SAO=0_vs_CE2-3.4.c (BO offset band).xlsm
anchor_SAO=0_vs_CE2-3.4.d (shifted structure).xlsm
anchor_SAO=0_vs_CE2-3.4.e (range).xlsm
anchor_SAO=0_vs_CE2-3.4.f (all).xlsm
anchor_SAO=0_vs_CE2-3.4.g (a+b+d).xlsm
anchor_SAO=1_vs_CE2-3.4.a (EO classification).xlsm
anchor_SAO=1_vs_CE2-3.4.b (BO offset quantization).xlsm
anchor_SAO=1_vs_CE2-3.4.c (BO offset band).xlsm
anchor_SAO=1_vs_CE2-3.4.d (shifted structure).xlsm
anchor_SAO=1_vs_CE2-3.4.e (range).xlsm
anchor_SAO=1_vs_CE2-3.4.f (all).xlsm
anchor_SAO=1_vs_CE2-3.4.g (a+b+d).xlsm
JVET-K0176.pdf
JVET-K0176_v5.docx
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JVET-K0176 CE2: SAO modification (CE2.3.4) [J. Chen, K. Choi, C. Kim (Samsung)]
Citation