Invention Grant
- Patent Title: Bilateral matching based scaling factor derivation for JMVD
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Application No.: US17982171Application Date: 2022-11-07
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Publication No.: US11936903B2Publication Date: 2024-03-19
- Inventor: Liang Zhao , Xin Zhao , Shan Liu
- Applicant: Tencent America LLC
- Applicant Address: US CA Palo Alto
- Assignee: TENCENT AMERICA LLC
- Current Assignee: TENCENT AMERICA LLC
- Current Assignee Address: US CA Palo Alto
- Agency: Sughrue Mion, PLLC
- Main IPC: H04N19/52
- IPC: H04N19/52 ; H04N19/105 ; H04N19/13 ; H04N19/139 ; H04N19/156 ; H04N19/176 ; H04N19/30 ; H04N19/70 ; H04N19/88

Abstract:
A method for video coding includes obtaining a coding block of video data, determining whether a joint coding of motion vector difference (JMVD) is used for predicting the coding block, obtaining, based on determining that the JMVD is used for predicting the coding block, a list of scaling factors and the JMVD from the video bitstream, deriving a predicted scaling factor based on the list of scaling factors, deriving a motion vector difference (MVD) for a reference list based on at least the joint motion vector difference and the predicted scaling factor, and reconstructing the coding block based on the derived MVD.
Public/Granted literature
- US20230336771A1 BILATERAL MATCHING BASED SCALING FACTOR DERIVATION FOR JMVD Public/Granted day:2023-10-19
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