- 专利标题: Reduced complexity transforms for high bit-depth video coding
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申请号: US17742128申请日: 2022-05-11
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公开(公告)号: US11818353B2公开(公告)日: 2023-11-14
- 发明人: Louis Joseph Kerofsky , 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: H04N19/126
- IPC分类号: H04N19/126 ; H04N19/176 ; H04N19/18 ; H04N19/70
摘要:
Techniques for performing inverse transform operations on high bit-depth video data are described. A video decoder may receive encoded video data encoded at a first bit-depth in an encoded video bitstream. The video decoder may determine one or more of a dequantization shift or a mid-transform shift based on information in the encoded video bitstream, and perform an inverse transform on the encoded video data at a second bit-depth using the dequantization shift and the mid-transform shift, wherein the second bit-depth is lower than the first bit-depth.
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