Invention Grant
- Patent Title: Adaptively deriving rice parameter values for high bit-depth video coding
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Application No.: US17494418Application Date: 2021-10-05
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Publication No.: US11722672B2Publication Date: 2023-08-08
- Inventor: Luong Pham Van , Dmytro Rusanovskyy , Marta Karczewicz
- 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, PA
- Main IPC: H04N19/13
- IPC: H04N19/13 ; H04N19/176 ; H04N19/18 ; H04N19/91

Abstract:
An example device for binarizing video data includes a memory configured to store video data; and one or more processors implemented in circuitry and configured to: calculate a local sum of absolute values (locSumAbs value) of neighboring coefficients to a current coefficient of a current block of video data; derive a shift value from the locSumAbs value; normalize the locSumAbs value using the shift value; determine a Rice parameter using the normalized locSumAbs value; and binarize or inverse binarize the current coefficient using the Rice parameter. In this manner, these techniques may allow for more appropriate Rice parameter value selection when binarizing high bitdepth data in conjunction with performing context-adaptive binary arithmetic coding (CABAC).
Public/Granted literature
- US20220109844A1 ADAPTIVELY DERIVING RICE PARAMETER VALUES FOR HIGH BIT-DEPTH VIDEO CODING Public/Granted day:2022-04-07
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