Inter-color component residual prediction
US-2015016512-A1 · Jan 15, 2015 · US
Intra-plane and inter-plane predictive method for RGB image coding
US9215469B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9215469-B2 |
| Application number | US-201414323862-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 3, 2014 |
| Priority date | Jan 10, 2014 |
| Publication date | Dec 15, 2015 |
| Grant date | Dec 15, 2015 |
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Abstract
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An apparatus and method for enhanced encoding of RGB images is presented. The use of intra-plane prediction, which relies on correlation between neighboring pixels of the same color, is enhanced by adding inter-plane prediction that relies on correlation between neighboring pixels of different colors. Inter-plane prediction is performed on at least one of the colors, and more preferably two of the colors, such as R and B, based on input from G. In at least one embodiment, multiple encoding modes are provided, in which different colors from the RGB image are differently coded with either pulse code modulation (PCM), or differential pulse code modulation (DPCM) at a given quantization level (qn). The quantization level and selection of mode being determined for optimizing coding (e.g., based on bit coverage).
First claim
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What is claimed is: 1. An apparatus for RGB image encoding, comprising: (a) a computer processor configured for receiving color pixel data of an input RGB image containing colors red (R n ), blue (B n ), and green (G n ) pixels associated with each pixel group number n; and (b) programming in a non-transitory computer readable medium and executable on the computer processor for performing steps comprising: (i) performing quantization for multiple quantization level (qn) values;…
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Electricity · mapped topic
- H04N19/186Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9215469B2 cover?
- An apparatus and method for enhanced encoding of RGB images is presented. The use of intra-plane prediction, which relies on correlation between neighboring pixels of the same color, is enhanced by adding inter-plane prediction that relies on correlation between neighboring pixels of different colors. Inter-plane prediction is performed on at least one of the colors, and more preferably two of …
- Who is the assignee on this patent?
- Sony Corp
- What technology area does this patent fall under?
- Primary CPC classification H04N19/186. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 15 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).