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Method and apparatus for decoding/encoding video signal using transform derived from graph template

A video signal and template technology, applied in digital video signal modification, image communication, electrical components, etc., can solve the problems of memory storage, memory access rate and processing capacity increase, and achieve the effect of efficient compilation method and good compilation gain

Active Publication Date: 2017-08-01
LG ELECTRONICS INC
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Processing these contents will result in a tremendous increase in memory storage, memory access rate, and processing power

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  • Method and apparatus for decoding/encoding video signal using transform derived from graph template
  • Method and apparatus for decoding/encoding video signal using transform derived from graph template
  • Method and apparatus for decoding/encoding video signal using transform derived from graph template

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Embodiment Construction

[0032] In accordance with an embodiment of the present invention, there is provided a method of decoding a video signal using a graph-based transform, the method comprising: receiving from the video signal a template index for a target unit, wherein the template index indicates the target unit to be applied to a graph-based transformation template for the cell; deriving a graph-based transformation matrix for the target cell corresponding to the template index; and decoding the target cell based on the graph-based transformation matrix.

[0033] In the present invention, the template index corresponds to a template map in the predetermined template map set.

[0034] In the present invention, the predetermined template atlas includes a plurality of template graphs, wherein the plurality of template graphs have patterns in which corner regions in the target cell have smaller edge weights than other regions in the target cell.

[0035] In the present invention, a predetermined te...

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Abstract

The present invention provides a method for decoding a video signal using a graph-based transform, the method comprising the steps of: receiving a template index for a target unit from the video signal, wherein the template index indicates a graph-based transform template to be applied to the target unit; deriving a graph-based transform matrix for the target unit, corresponding to the template index; and decoding the target unit on the basis of the graph-based transform matrix.

Description

technical field [0001] The present invention relates to methods and apparatus for encoding / decoding video signals using graph-based transforms. More specifically, the present invention relates to graph template based adaptive transformations. Background technique [0002] Next-generation video content will be characterized by high spatial resolution, high frame rate, and high dimensionality of scene representation. Processing these contents will result in a tremendous increase in memory storage, memory access rate and processing power. Accordingly, there is a need for compilation tools designed to more efficiently process next-generation video content. [0003] Specifically, a graph is a form of data representation that can be used to describe the relationships between pixels. A graph-based signal processing method that expresses a relationship between pixels as a graph and processes a video signal based on the graph has been used. In this graph-based signal processing, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/103H04N19/107H04N19/124
CPCH04N19/103H04N19/107H04N19/124H04N19/12H04N19/14H04N19/176H04N19/60
Inventor 阿米尔·赛义德赫尔米·埃内斯·埃吉尔麦斯
Owner LG ELECTRONICS INC
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