Joint base layer and enhancement layer quantizer adaptation in EDR video coding
US-9219916-B2 · Dec 22, 2015 · US
Scalable video coding method, encoder and computer program
US9106920B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9106920-B2 |
| Application number | US-200913318426-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 5, 2009 |
| Priority date | May 5, 2009 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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A scalable video coding method for coding a video sequence ( 10 ) results in a bit stream ( 20 } partitionable into two layer representations ( 20 1 , 2 O 2 ) of the video sequence ( 10 ). The second layer representation ( 2 O 2 ) has an enhanced resolution compared to the first layer representation ( 2 O 1 .). The method includes generating (si) predictive coding parameters for the second layer using previously reconstructed pixels ( 14 ) in the second layer. The method further includes performing (s 2 ) prediction for the first layer, using the predictive coding parameters and the previously reconstructed pixels ( 14 ) in the second layer, to generate a first layer prediction signal. The method further includes generating (s 3 ) a first layer residual, based on the difference between the original image and the first layer prediction signal. The predictive coding parameters and the first layer residual are coded (s 4 ) as the first layer representation ( 2 O 1 ). An encoder ( 30 ) and computer program are also provided.
First claim
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The invention claimed is: 1. A scalable video coding method for encoding a video sequence into a bit stream, the resulting bit stream being partitionable into at least a first layer representation and a second layer representation of the video sequence, wherein the second layer representation has an enhanced spatial or quality resolution compared to the first layer representation, comprising: generating predictive coding parameters for the second layer representation of at least o…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04N19/36Primary
Electricity · mapped topic
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- What does patent US9106920B2 cover?
- A scalable video coding method for coding a video sequence ( 10 ) results in a bit stream ( 20 } partitionable into two layer representations ( 20 1 , 2 O 2 ) of the video sequence ( 10 ). The second layer representation ( 2 O 2 ) has an enhanced resolution compared to the first layer representation ( 2 O 1 .). The method includes generating (si) predictive coding parameters for the second …
- Who is the assignee on this patent?
- Rusert Thomas, Andersson Kenneth, Ericsson Telefon Ab L M
- What technology area does this patent fall under?
- Primary CPC classification H04N19/36. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 11 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).