Back to Search Document details
15th Meeting: Gothenburg, SE, July 2019 2019-07-08 08:38
Non-CE4: Merge Modes Signaling
Authors: Han Huang Qualcomm W.-J. Chien Qualcomm Vadim Seregin Qualcomm Marta Karczewicz Qualcomm C.-W. Hsu MediaTek Y.-W. Huang MediaTek Shawmin Lei MediaTek
Abstract
In the current VTM, there are five merge modes including: the regular merge mode, the merge mode with motion vector difference, the subblock-based merge mode, combined inter and intra prediction mode, and triangle partition mode. The merge mode signaling follows the order described. In this contribution, two changes are proposed. First, it’s proposed to disable triangle merge prediction mode for a CU that has width or height larger than 64. Second, it’s proposed to group the merge modes in to 3 categories: 1) subblock-based merge mode, 2) regular merge mode and merge mode with motion vector difference, 3) combined inter and intra prediction mode and triangle merge prediction mode. Then a first bin is used to indicate whether the first group is used, and if the first bin is 0, a second bin is used to decide between second group and third group. For the second and third groups, one bin is used to specify the selected mode. The Y, U, V BD-rate performance for RA and LDB under common test conditions respectively are {-0.08%, -0.12%, -0.19%} and {-0.06%, 0.09%, 0.02%}. In the high QP test, the BD-rate performance for RA and LDB are {-0.24%, -0.35%, -0.39%} and {-0.38%, -0.55%, -0.65}, respectively. For the first change only, the BD-rate performance for RA and LDB are {-0.02%, 0.00%, 0.00%} and {0.03%, 0.07%, -0.10%}, respectively. When the proposed size constrain on TPM is not applied, the Y, U, V BD-rate performances in RA and LDB common test conditions are {-0.08%, -0.14%, -0.18%} and {-0.06%, -0.01%, -0.32%}, respectively. In the high QP test, the Y, U, V BD-rate performances in RA and LDB are {-0.24%, -0.34%, -0.36%} and {-0.44%, -0.62%, -0.50%}, respectively.
Meeting Notes
JVET-O0249 Non-CE4: Merge Modes Signalling [H. Huang, W.-J. Chien, V. Seregin, M. Karczewicz (Qualcomm), C.-W. Hsu, Y.-W. Huang, S.-M. Lei (MediaTek)]
Cited:
JVET-O0728 X JVET-O0951 X JVET-P0002 JVET-P0003 JVET-P0071 JVET-P0074 JVET-P0075 JVET-P0113 JVET-P0114 JVET-P0115 JVET-P0116 JVET-P0117 JVET-P0118 JVET-P0126 JVET-P0150 JVET-P0151 JVET-P0155 JVET-P0162 JVET-P0168 JVET-P0220 more than 20
ARCHIVE :
JVET-O0249-Test1.xlsm JVET-O0249-Test2.xlsm JVET-O0249-Test3.xlsm JVET-O0249-Test4-stat.xlsm JVET-O0249-Test4.xlsm JVET-O0249-Test5-stat.xlsm JVET-O0249-Test5.xlsm JVET-O0249-Test6.xlsm JVET-O0249.docx JVET-O0249.pptx
Decisions
merged
JVET-O0249 Non-CE4: Merge Modes Signalling [H. Huang, W.-J. Chien, V. Seregin, M. Karczewicz (Qualcomm), C.-W. Hsu, Y.-W. Huang, S.-M. Lei (MediaTek)]
Citation