Image decoding method and image decoding apparatus
US-9161036-B2 · Oct 13, 2015 · US
External vectors in a motion estimation system
US8929451B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8929451-B2 |
| Application number | US-201213563525-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 31, 2012 |
| Priority date | Aug 4, 2011 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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Abstract
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A method and apparatus for motion estimation in a sequence of video images is provided. Each field or frame in a sequence of video images is sub-divided into a plurality of blocks. Each block in each video field or frame has assigned to it a set of candidate motion vectors. The vector which produces a best match to a block in a previous field or frame, from the set of candidate motion vectors, is assigned to that block thus forming the motion vector field for the current video field or frame using the selected vector. The set of candidate motion vectors assigned to a block include one or more candidate vectors derived from an external source vector field and each such vector from an external source vector field is assigned a weighting that biases towards or away from the selection of that vector.
First claim
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The invention claimed is: 1. A machine-implemented method for motion estimation in a sequence of video images, comprising: subdividing each field or frame of a sequence of video images into a plurality of blocks; assigning to each block in each video field or frame a set of candidate motion vectors; for each block in a current video field or frame, selecting a vector that produces a best match to a block in a previous video field or frame, from the set of candidate motion vect…
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- H04N19/00684Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US8929451B2 cover?
- A method and apparatus for motion estimation in a sequence of video images is provided. Each field or frame in a sequence of video images is sub-divided into a plurality of blocks. Each block in each video field or frame has assigned to it a set of candidate motion vectors. The vector which produces a best match to a block in a previous field or frame, from the set of candidate motion vectors, …
- Who is the assignee on this patent?
- Fishwick Steven, Morphet Stephen, Imagination Tech Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04N19/00684. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).