Google patents video decoding that skips unnecessary motion checks
This patent describes a method for decoding video by only calculating a specific group of motion vectors needed for a block of pixels, rather than processing every possible option. It uses an index from the video file to determine which smaller set of vectors to generate before selecting the final one for decoding.
In the filing’s own words
An index of a motion vector candidate of a list of motion vector candidates is decoded from a compressed bitstream. A subset of motion vector candidates to generate is determined based on the index. The subset of motion vector candidates is then generated. The subset of motion vector candidates is a proper subset of the list of motion vector candidates. That is, fewer than all of the motion vector candidates of the list of motion vector candidates are generated. The motion vector candidate is selected from the subset of motion vector candidates based on the index. A current block is decoded using the motion vector candidate.
What exactly they claim (claim 1)
1. A method for decoding a current block, comprising: decoding, from a compressed bitstream, an index of a motion vector candidate of a list of motion vector candidates; determining a subset of motion vector candidates to generate based on the index; generating the subset of motion vector candidates, wherein the subset of motion vector candidates is a proper subset of the list of motion vector candidates; selecting, based on the index, the motion vector candidate from the subset of motion vector candidates; and decoding the current block using the motion vector candidate.
Facts
- Company
- Google (Google LLC)
- Official title
- Motion Vector Candidate Signaling
- Publication number
- US20260332774A1
- Application number
- 19113972
- Filed
- Dec 16, 2022
- Published
- Oct 22, 2026
- Inventors
- 3
- Claims
- 20
Classified under
H04N 19/139 Electricity & electronicsH04N 19/132 Electricity & electronicsH04N 19/176 Electricity & electronicsMore from Google 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.