Invention Publication
- Patent Title: ENTROPY CODING OF MOTION VECTOR DIFFERENCES
-
Application No.: US18053219Application Date: 2022-11-07
-
Publication No.: US20230188719A1Publication Date: 2023-06-15
- Inventor: Valeri GEORGE , Benjamin BROSS , Heiner KIRCHHODDER , Detlev MARPE , Tung NGUYEN , Matthias PRIESS , Mischa SIEKMANN , Jan STEGEMANN , Thomas WIEGAND
- Applicant: GE Video Compression, LLC
- Applicant Address: US NY Albany
- Assignee: GE Video Compression, LLC
- Current Assignee: GE Video Compression, LLC
- Current Assignee Address: US NY Albany
- Main IPC: H04N19/13
- IPC: H04N19/13 ; H04N19/50 ; H04N19/70 ; H04N19/61 ; H04N19/124 ; H03M7/42 ; H04N19/52 ; H04N19/513 ; H04N19/91 ; H04N19/132 ; H04N19/174 ; H04N19/184

Abstract:
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.
Information query