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13th Meeting: Marrakech, January 2019 2019-01-10 19:12
CE5: Per-context CABAC initialization with double windows (Test 5.1.3)
Authors: Amir Said Qualcomm Jie Dong Qualcomm H. Egilmez Qualcomm Yung-Hsuan Chao Qualcomm Marta Karczewicz Qualcomm Vadim Seregin Qualcomm
Abstract
This contribution reports the simulation results for Test CE5.1.3 [1]. In this test, the CABAC engine uses double windows to estimate the binary symbol probabilities, where the window parameters are different for different contexts and are stored in a pre-defined look-up table (LUT). The range update method used for the CABAC engine is either the one proposed in JVET-L0117 [2] or the one proposed in JVET-L0335 [3]. Compared with VTM3.0, the average coding gains of the proposed CABAC engine are -0.99% AI, -0.95% RA, and -0.82% LDB, when JVET-L0117 is used for range update; and are -0.95% AI, -0.90% RA, and -0.77% LDB, when JVET-L0335 is used for range update.
Meeting Notes
JVET-M0412 CE5: Per-context CABAC initialization with double windows (Test 5.1.3) [A. Said, J. Dong, H. Egilmez, Y.-H. Chao, M. Karczewicz, V. Seregin (Qualcomm)]
References:
JVET-L0115 JVET-L0117 JVET-L0335 JVET-L1025
Cited:
JVET-M0025
PATENTS:
ES2720662T3 0.34 2019-07-23 US12537938B2 0.32 2026-01-27 US11871025B2 0.30 2024-01-09 US11695946B2 0.28 2023-07-04 US20240195982A1 0.26 2024-06-13 CN113261292A 0.24 2021-08-13 CN119137944A 0.22 2024-12-13 CN119563315A 0.20 2025-03-04
ARCHIVE v2 :
JVET-L1001-v7.docx JVET-M0412 (L0117 for range update).xlsm JVET-M0412 (L0335 for range update).xlsm JVET-M0412.docx
Decisions
JVET-M0412 CE5: Per-context CABAC initialization with double windows (Test 5.1.3) [A. Said, J. Dong, H. Egilmez, Y.-H. Chao, M. Karczewicz, V. Seregin (Qualcomm)]
Citation