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13th Meeting: Marrakech, January 2019 2019-01-02 21:56
CE10: Simplification on Combined Inter-Intra Prediction with size restriction (Test 10.1.5)
Authors: Weiwei Xu Huawei Biao Wang Huawei Hyeong-Gyun Yang Huawei Jie Chen Huawei Man-Shu Chiang MediaTek C.-W. Hsu MediaTek Y.-W. Huang MediaTek Shawmin Lei MediaTek
Abstract
This proposal simplifies the Combined Inter-Intra Prediction (CIIP) adopted in Macao meeting from three aspects. First, the four intra modes is reduced to only Planar mode. Second, the Planar prediction process is performed by skipping PDPC. Third, the number of weights is reduced. In addition, the proposed simplifications are combined with the test in CE10.1.4, where the size of blocks applied with combined inter-intra prediction is restricted no larger than 1024 samples. Two Tests CE10.1.5.a and CE10.1.5.b are performed: CE10.1.5.a uses only Planar mode in CIIP, with equal weights, and applies the size restriction; CE10.1.5.b uses only Planar mode in CIIP, skip the PDPC step, and applies the size restriction. In addition, CE10.1.5.a applies equal weights for all configurations while CE10.1.5.b applies equal weights except for low delay P, where (2, 6) weights are used with 2 applied for intra.
Meeting Notes
JVET-M0293 CE10: Simplification on Combined Inter-Intra Prediction with size restriction (Test 10.1.5) [W. Xu, B. Wang, H. Yang, J. Chen (Huawei), M.-S. Chiang, C.-W. Hsu, Y.-W. Huang, S.-M. Lei (MediaTek)]

This proposal simplifies the Combined Inter-Intra Prediction (CIIP) adopted in Macao meeting from three aspects. First, the four intra modes is reduced to only Planar mode. Second, the Planar prediction process is performed by skipping PDPC. Third, the number of weights is reduced. In addition, the proposed simplifications are combined with the test in CE10.1.4, where the size of blocks applied with combined inter-intra prediction is restricted no larger than 1024 samples. Two Tests CE10.1.5.a and CE10.1.5.b are performed: CE10.1.5.a uses only Planar mode in CIIP, with equal weights, and applies the size restriction; CE10.1.5.b uses only Planar mode in CIIP, skip the PDPC step, and applies the size restriction. In addition, CE10.1.5.a applies equal weights for all configurations while CE10.1.5.b applies equal weights except for low delay P, where (2, 6) weights are used with 2 applied for intra.

It is reported that, compared to VTM3.0, the luma BD-rate of proposed CE10.1.5.a are 0.02% in RA, and 0.11% in LDB with encoding time slightly decreased and decoding time remains the same; the luma BD-rate of proposed CE10.1.5.b are 0.06% in RA, and 0.07% in LDB with encoding and decoding time remains the same, respectively.

References:
JVET-L1010
Cited:
JVET-M0030
PATENTS:
US11956449B2 0.70 2024-04-09 US12491206B2 0.34 2025-12-09 EP3214872A1 0.32 2017-09-06 CN111094987A 0.30 2020-05-01 JP5221371B2 0.28 2013-06-26 JP5405116B2 0.26 2014-02-05 CN111630858B 0.25 2024-03-29 JP5579987B2 0.24 2014-08-27
ARCHIVE v1 :
JVET-M0293_CE10_1_5.docx VTM-3.0_CE10_1_5a.xlsm VTM-3.0_CE10_1_5b.xlsm
Decisions
It is reported that, compared to VTM3.0, the luma BD-rate of proposed CE10.1.5.a are 0.02% in RA, and 0.11% in LDB with encoding time slightly decreased and decoding time remains the same; the luma BD-rate of proposed CE10.1.5.b are 0.06% in RA, and 0.07% in LDB with encoding and decoding time remains the same, respectively.
Citation