BDOF-based inter prediction method and device
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United States of America Patent
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Jan 16, 2024
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app pub date -
Sep 13, 2022
filing date -
Mar 15, 2019
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Abstract
An image decoding method includes: deriving an L0 motion vector and a L1 motion vector of the current block; deriving prediction samples of the current block based on the L0 motion vector and the L1 motion vector; and generating reconstructed samples of the current block based on the prediction samples. Deriving the prediction samples includes applying bi-directional optical flow (BDOF) to the current block based on whether the condition for applying BDOF to the current block is satisfied, and the application condition of the BDOF includes a condition whereby the values of L0 luma weighted prediction flag information and L1 luma weighted prediction flag information are both zero, where the a value of each of the L0 luma weighted prediction flag information and L1 luma weighted prediction flag information being 0 represents that a weight factor for each of a L0 and L1 prediction luma components does not exist, respectively.
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- 15 United States
- 10 France
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- 5 Korea
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Patent Owner(s)
- LG ELECTRONICS INC.
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Jang, Hyeongmoon | Seoul, KR | 223 | 864 |
Nam, Junghak | Seoul, KR | 284 | 1146 |
Park, Naeri | Seoul, KR | 224 | 1304 |
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