Ltr frame updating in video encoding
US-2024414352-A1 · Dec 12, 2024 · US
Unified transform coefficient encoding and decoding
US9036710B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9036710-B2 |
| Application number | US-201213446393-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 13, 2012 |
| Priority date | Mar 8, 2012 |
| Publication date | May 19, 2015 |
| Grant date | May 19, 2015 |
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Abstract
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Methods and devices for reconstructing coefficient levels from a bitstream of encoded video data for a coefficient group in a transform unit, using adaptive-threshold-based level coding. Threshold is set based upon level information from one or more previously-reconstructed coefficient groups in the transform unit. Threshold may be maximum number of level flags to decode for the coefficient group. Level information may include number of level flags decoded in previous coefficient groups. Previously-reconstructed coefficient groups may include coefficient group to the right and below the current coefficient group.
First claim
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What is claimed is: 1. A method of reconstructing coefficient levels from a bitstream of encoded video data for a coefficient group in a transform unit, wherein the bitstream includes encoded significant-coefficient flags indicating non-zero coefficients in the coefficient group, the method comprising: dynamically setting a threshold based upon level information from one or more previously-reconstructed neighboring coefficient groups in the transform unit, wherein the threshold se…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04N19/176Primary
Electricity · mapped topic
- H03M7/4006Primary
Electricity · mapped topic
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- What does patent US9036710B2 cover?
- Methods and devices for reconstructing coefficient levels from a bitstream of encoded video data for a coefficient group in a transform unit, using adaptive-threshold-based level coding. Threshold is set based upon level information from one or more previously-reconstructed coefficient groups in the transform unit. Threshold may be maximum number of level flags to decode for the coefficient gro…
- Who is the assignee on this patent?
- Nguyen Nguyen, Ji Tianying, He Dake, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H04N19/176. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 19 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).