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14th Meeting: Geneva, March 2019 2019-03-22 10:27
CE4-related: Motion compression for HMVP buffers and MV line buffer
Authors: Y.-L. Hsiao MediaTek T.-D. Chuang MediaTek C.-W. Hsu MediaTek C.-Y. Chen MediaTek Y.-W. Huang MediaTek Shawmin Lei MediaTek
Abstract
This contribution proposes to utilize the same mantissa-exponent representation for temporal motion vector predictors (TMVPs) to reduce the number of bits stored in the history motion vector predictor (HMVP) buffers and motion vector (MV) line buffer. With motion compression for regular merge HMVP buffer and intra block copy (IBC) HMVP buffer, in total 320 bits are reduced. With motion compression for MV line buffer, 32 bits are reduced per 4x4 luma block, and 30720 bits are reduced in case of 4K video. Results are summarized as follows.
Meeting Notes
JVET-N0084 CE4-related: Motion compression for HMVP buffers and MV line buffer [Y.-L. Hsiao, T.-D. Chuang, C.-W. Hsu, C.-Y. Chen, Y.-W. Huang, S.-M. Lei (MediaTek)]
References:
JVET-M0512 JVET-M1010
Cited:
JVET-N0024 JVET-N0824 X
ARCHIVE v6 :
JVET-N0084-v1.docx JVET-N0084-v2-clean.docx JVET-N0084-v2.docx JVET-N0084-v3-clean.docx JVET-N0084-v3.docx JVET-N0084-v4-clean.docx JVET-N0084-v4.docx JVET-N0084_DraftText_Method1-MotionCompressionHmvpBuffers.docx JVET-N0084_DraftText_Method2-MotionCompressionMvLineBuffer.docx JVET-N0084_Presentation.pdf JVET-N0084_Results_Table1.xlsm JVET-N0084_Results_Table2.xlsm JVET-N0084_Results_Table3.xlsm
Decisions
JVET-N0084 CE4-related: Motion compression for HMVP buffers and MV line buffer [Y.-L. Hsiao, T.-D. Chuang, C.-W. Hsu, C.-Y. Chen, Y.-W. Huang, S.-M. Lei (MediaTek)]
Citation