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13th Meeting: Marrakech, January 2019 2019-01-11 17:42
AHG12: Improved parallel processing capability with WPP
Authors: Y. Fujimoto Sony M. Ikeda Sony Teruhiko Suzuki Sony
Abstract
In this contribution, VPDU (Virtual Pipeline Data Unit) based WPP (Wavefront Parallel Processing) is proposed. In VVC, due to the increase in max CTU size from 64x64 (HEVC) to 128x18, the number of process in parallel (threads) of HEVC style WPP becomes half of HEVC. VPDU based WPP (proposed VVC WPP) can improve 30% parallel level. This contribution also confirmed that coding efficiency loss is (AI 0.02%, RA 0.15%, LB 0.06%, LP 0.04%), while coding efficiency loss of HEVC style WPP is (AI 0.39%, RA 2.62%, LB 3.05%, LP 2.80%).
Meeting Notes
JVET-M0071 WPP: Improved parallel processing capability with WPP [Y. Fujimoto, M. Ikeda, T. Suzuki (Sony)]
References:
JVET-K0230 JVET-L0081
Cited:
JVET-M0012 JVET-M0593 X JVET-M0774 JVET-M0782 JVET-N0060 JVET-N0150 JVET-N0559 X JVET-N0754
PATENTS:
JP2020174400A 0.70 2020-10-22 GB2532420A 0.32 2016-05-25 KR20180016348A 0.30 2018-02-14 CN114449279A 0.28 2022-05-06 US20140278786A1 0.26 2014-09-18 US20140081742A1 0.24 2014-03-20 BR112016028745B1 0.22 2023-07-04 JP2003143560A 0.20 2003-05-16
ARCHIVE v3 :
JVET-M0071-v3.docx JVET-M0071_vtm_anchor_vs_wpp_anchor.xlsm JVET-M0071_wpp_anchor_vs_wpp_ctu64.xlsm JVET-M0071_wpp_anchor_vs_wpp_ex1b.xlsm
Decisions
JVET-M0071 WPP: Improved parallel processing capability with WPP [Y. Fujimoto, M. Ikeda, T. Suzuki (Sony)]
Citation