Invention Grant
- Patent Title: Coefficient coding for transform skip mode in video coding
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Application No.: US16886381Application Date: 2020-05-28
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Publication No.: US11381847B2Publication Date: 2022-07-05
- Inventor: Marta Karczewicz , Hongtao Wang , Muhammed Zeyd Coban , Yung-Hsuan Chao
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Shumaker & Sieffert P.A.
- Main IPC: H04N19/88
- IPC: H04N19/88 ; H04N19/124 ; H04N19/129

Abstract:
Techniques for coding coefficients in a residual block are described. A video coder (e.g., video encoder or video decoder) may code (e.g., encode or decode), in an interleaving manner, coefficient information on a coefficient-by-coefficient basis for coefficients in a residual block of a current block of the video data in a first pass, wherein the coefficient information for a coefficient includes one or more of a significance flag indicating whether a value of the coefficient is not zero, a parity flag indicating whether the value of the coefficient is odd or even, a sign flag indicating whether the value of the coefficient is positive or negative, and one or more greater than flags indicating whether an absolute value of the coefficient is greater than respective threshold values, and after the first pass, code remainder information for coefficients in the residual block of the current block in a second pass.
Public/Granted literature
- US20200382813A1 COEFFICIENT CODING FOR TRANSFORM SKIP MODE IN VIDEO CODING Public/Granted day:2020-12-03
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