- 专利标题: ENTROPY CODING OF MOTION VECTOR DIFFERENCES
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申请号: US16454387申请日: 2019-06-27
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公开(公告)号: US20190320178A1公开(公告)日: 2019-10-17
- 发明人: Valeri GEORGE , Benjamin BROSS , Heiner KIRCHHOFFER , Detlev MARPE , Tung NGUYEN , Matthias PREISS , Mischa SIEKMANN , Jan STEGEMANN , Thomas WIEGAND
- 申请人: GE Video Compression, LLC
- 主分类号: H04N19/13
- IPC分类号: H04N19/13 ; H03M7/42 ; H04N19/124 ; H04N19/61 ; H04N19/70 ; H04N19/50 ; H04N19/52 ; H04N19/174 ; H04N19/91 ; H04N19/513 ; H04N19/132 ; H04N19/184
摘要:
An entropy decoder is configured to, for horizontal and vertical components of motion vector differences, derive a truncated unary code from the data stream using context-adaptive binary entropy decoding with exactly one context per bin position of the truncated unary code, which is common for horizontal and vertical components of the motion vector differences, and an Exp-Golomb code using a constant equi-probability bypass mode to obtain the binarizations of the motion vector differences. A desymbolizer is configured to debinarize the binarizations of the motion vector difference syntax elements to obtain integer values of the horizontal and vertical components of the motion vector differences. A reconstructor is configured to reconstruct a video based on the integer values of the horizontal and vertical components of the motion vector differences.
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