Invention Grant
- Patent Title: Residual coding for transform skip mode and block differential pulse-code modulation
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Application No.: US16799358Application Date: 2020-02-24
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Publication No.: US11044492B2Publication Date: 2021-06-22
- Inventor: Xin Zhao , Xiang Li , Shan Liu
- Applicant: Tencent America LLC
- Applicant Address: US CA Palo Alto
- Assignee: Tencent America LLC
- Current Assignee: Tencent America LLC
- Current Assignee Address: US CA Palo Alto
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Main IPC: H04N19/547
- IPC: H04N19/547 ; H04N19/132 ; H04N19/176 ; H04N19/70 ; H04N19/18 ; H04N19/184 ; H04N19/64 ; H04N19/12

Abstract:
A method of video decoding performed in a video decoder is provided. A bit stream including bins of syntax elements is received. The syntax elements correspond to coefficients of a region of a transform skipped block in a coded picture. The syntax elements include a first flag indicating whether an absolute coefficient level of one of the coefficients is greater than a first threshold value, and a second flag indicating a parity of the absolute coefficient level. The second flag is decoded in a pass. The pass satisfies at least one of: (1) no other syntax elements is decoded in the pass; (2) a third flag indicating whether the absolute coefficient level is greater than a second threshold value is decoded in the pass; and (3) a fourth flag indicating sign information of the coefficient level of the one of the coefficients is decoded in the pass.
Public/Granted literature
- US20200275121A1 RESIDUAL CODING FOR TRANSFORM SKIP MODE AND BLOCK DIFFERENTIAL PULSE-CODE MODULATION Public/Granted day:2020-08-27
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