Samsung patents video decoding method using affine motion parameters
Samsung has filed a patent application for a video decoding method that improves how video blocks are reconstructed. The system determines motion parameters for a current video block by analyzing adjacent blocks that have already been decoded, specifically using data from the top-left, bottom-left, and bottom-right corners to predict movement.
In the filing’s own words
Provided is a video decoding method including: obtaining affine parameter group candidates of a current block based on whether adjacent blocks of the current block are decoded; determining an affine parameter group of the current block from among the affine parameter group candidates, according to affine parameter information of the current block; and reconstructing the current block, based on one or more affine parameters included in the affine parameter group.
What exactly they claim (claim 1)
1. A video decoding method comprising: obtaining affine parameter group candidates of a current block based on whether adjacent blocks of the current block are decoded; determining an affine parameter group of the current block from among the affine parameter group candidates, according to affine parameter information of the current block; and reconstructing the current block, based on two or three affine parameters included in the affine parameter group, wherein the affine parameter group candidates include a first affine parameter group candidate, a second affine parameter group candidate and a third affine parameter group candidate, the first affine parameter group candidate is determined based on a motion vector obtained from one or more adjacent block corresponding to a top-left point of the current block, the second affine parameter group candidate is determined based on a motion vector obtained from one or more adjacent blocks corresponding to a bottom-left point of the current block, the third affine parameter group candidate is determined based on a motion vector obtained from one or more adjacent blocks corresponding to a bottom-right point of the current block, and the one or more adjacent blocks corresponding to the bottom-right point of the current block is decoded prior to the current block.
Facts
- Company
- Samsung (SAMSUNG ELECTRONICS CO., LTD.)
- Official title
- ENCODING METHOD AND DEVICE, AND DECODING METHOD AND DEVICE
- Publication number
- US20260313118A1
- Application number
- 19715189
- Filed
- Jun 22, 2026
- Published
- Oct 8, 2026
- Inventors
- 3
- Claims
- 3
Classified under
H04N 19/119 Electricity & electronicsH04N 19/129 Electricity & electronicsH04N 19/139 Electricity & electronicsH04N 19/176 Electricity & electronicsMore from Samsung in AI & software
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.