Invention Grant
- Patent Title: Handling of decoder-side motion vector refinement (DMVR) coding tool for reference picture resampling in video coding
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Application No.: US17484803Application Date: 2021-09-24
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Publication No.: US12022107B2Publication Date: 2024-06-25
- Inventor: Jianle Chen , Fnu Hendry , Ye-Kui Wang
- Applicant: Huawei Technologies Co., Ltd.
- Applicant Address: CN Shenzhen
- Assignee: Huawei Technologies Co., Ltd.
- Current Assignee: Huawei Technologies Co., Ltd.
- Current Assignee Address: CN Shenzhen
- Agency: Conley Rose, P.C.
- Main IPC: H04N19/52
- IPC: H04N19/52 ; H04N19/105 ; H04N19/132 ; H04N19/136 ; H04N19/159 ; H04N19/172 ; H04N19/174 ; H04N19/176 ; H04N19/46 ; H04N19/577 ; H04N19/33

Abstract:
A method of decoding includes determining, by the video decoder, whether a resolution of a current picture being decoded is the same as the resolution of reference pictures identified by a reference picture list associated with the current picture; enabling, by the video decoder, decoder-side motion vector refinement (DMVR) for a current block of the current picture when the resolution of the current picture is determined to be the same as the resolution of each of the reference pictures; disabling, by the video decoder, the DMVR for the current block of the current picture when the resolution of the current picture is determined to be different than the resolution of either of the reference pictures; and refining, by the video decoder, motion vectors corresponding to the current block using the DMVR when the DMVR flag is enabled for the current block.
Information query