Video coding with embedded motion
US-12034980-B2 · Jul 9, 2024 · US
Method for reducing blocking artifacts in images
US8942467B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8942467-B2 |
| Application number | US-201213428554-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 23, 2012 |
| Priority date | Mar 23, 2012 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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Blocking artifacts are reduced by projecting each patch obtained from an input image onto a set of bases vectors to determine multiple representations for each patch. The set of bases vectors are learned from a training image, and the bases vectors include a full basis vector, and one or two subspace bases vectors. An optimal basis vector is determined in the set of bases vectors for each patch according to the projection. A threshold is applied to coefficients of the optimal basis vector to determine a filtered representation for each patch, and a reconstructed patch is generated using the filtered representation. Then, the aggregating the reconstructed patches are aggregated to produce an output image.
First claim
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We claim: 1. A method for reducing blocking artifacts, comprising: projecting each patch obtained from an input image onto a set of bases vectors to determine multiple representations for each patch, wherein the set of bases vectors are learned from a training image, and the bases vectors include a full basis vector, and one or two subspace bases vectors, wherein the training image is a step image; determining an optimal basis vector in the set of bases vectors for each patch ac…
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- What does patent US8942467B2 cover?
- Blocking artifacts are reduced by projecting each patch obtained from an input image onto a set of bases vectors to determine multiple representations for each patch. The set of bases vectors are learned from a training image, and the bases vectors include a full basis vector, and one or two subspace bases vectors. An optimal basis vector is determined in the set of bases vectors for each patch…
- Who is the assignee on this patent?
- Porikli Fatih, Wang Yi, Mitsubishi Electric Res Lab
- What technology area does this patent fall under?
- Primary CPC classification H04N19/97. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 27 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).