Video encoding/decoding method and apparatus, and recording medium in which bit stream is stored
US-2024357109-A1 · Oct 24, 2024 · US
Spatial prediction method, image decoding method, and image coding method
US9215465B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9215465-B2 |
| Application number | US-201414446459-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 30, 2014 |
| Priority date | Apr 12, 2010 |
| Publication date | Dec 15, 2015 |
| Grant date | Dec 15, 2015 |
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Abstract
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A spatial prediction method capable of reducing the complexity of spatial prediction includes: detecting an edge (E) overlapping the current block by obtaining a horizontal gradient (Gy) and a vertical gradient (Gx) between pixels within a block adjacent to the current block; calculating an integer slope of the edge; determining, for each pixel position within the current block, a sub-pel position being an intersection between (i) a line that has the integer slope and passes through the pixel position and (ii) a boundary of the adjacent block; and predicting, for each pixel position, a pixel value at the pixel position based on a pixel value interpolated in the sub-pel position, wherein the boundary of the adjacent block is a row or a column that is the closest to the current block, among rows or columns of pixels included in the adjacent block.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for decoding an image coded in intra prediction for predicting a pixel value at each pixel position within a current block included in an image, the method comprising: deriving, using a processor, an integer slope indicating an integer value of a slope indicated by a mode number; determining a sub-pel position that is an intersection between (i) a line of the integer slope that passes through the pixel position within the current block and (…
Assignees
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Classifications
- H04N19/14Primary
Electricity · mapped topic
Electricity · mapped topic
- H04N19/593Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9215465B2 cover?
- A spatial prediction method capable of reducing the complexity of spatial prediction includes: detecting an edge (E) overlapping the current block by obtaining a horizontal gradient (Gy) and a vertical gradient (Gx) between pixels within a block adjacent to the current block; calculating an integer slope of the edge; determining, for each pixel position within the current block, a sub-pel posit…
- Who is the assignee on this patent?
- Panasonic Ip Corp America
- What technology area does this patent fall under?
- Primary CPC classification H04N19/14. 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).