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Method and device for providing compensation offsets for a set of reconstructed samples of an image
US9106931B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9106931-B2 |
| Application number | US-201214356751-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 7, 2012 |
| Priority date | Nov 7, 2011 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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Compensation offsets are provided for a set of reconstructed samples of an image. Each sample has a sample value. A method of providing the compensation offsets comprises selecting, based on a rate distortion criterion, a classification from among a plurality of predetermined classifications. Each predetermined classification has a classification range smaller than a full range of the sample values and is made up of a plurality of classes, each defining a range of sample values within the classification range, into which class a sample is put if its sample value is within the range of the class concerned. A compensation offset is associated with each class of the selected classification for application to the sample value of each sample of the class.
First claim
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The invention claimed is: 1. A method of providing compensation offsets for use in performing sample adaptive offset loop filtering on a set of reconstructed samples of an image, each sample having a sample value, the method comprising: selecting, based on a rate distortion criterion, a classification from among a plurality of predetermined classifications, each said predetermined classification having a classification range equal to one-eighth of a full range of the sample values…
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- What does patent US9106931B2 cover?
- Compensation offsets are provided for a set of reconstructed samples of an image. Each sample has a sample value. A method of providing the compensation offsets comprises selecting, based on a rate distortion criterion, a classification from among a plurality of predetermined classifications. Each predetermined classification has a classification range smaller than a full range of the sample va…
- Who is the assignee on this patent?
- Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification H04N19/13. 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).