- 专利标题: Adaptively deriving rice parameter values for high bit-depth video coding
-
申请号: US17494418申请日: 2021-10-05
-
公开(公告)号: US11722672B2公开(公告)日: 2023-08-08
- 发明人: Luong Pham Van , Dmytro Rusanovskyy , Marta Karczewicz
- 申请人: QUALCOMM Incorporated
- 申请人地址: US CA San Diego
- 专利权人: QUALCOMM Incorporated
- 当前专利权人: QUALCOMM Incorporated
- 当前专利权人地址: US CA San Diego
- 代理机构: Shumaker & Sieffert, PA
- 主分类号: H04N19/13
- IPC分类号: H04N19/13 ; H04N19/176 ; H04N19/18 ; H04N19/91
摘要:
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).
公开/授权文献
信息查询