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Method for coding image on basis of intra prediction using mpm list and apparatus therefor

An image coding and intra-frame prediction technology, applied in the field of image coding, can solve problems such as easy increase in cost

Active Publication Date: 2020-11-24
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, if the image / video data is transmitted via a medium such as an existing wired / wireless broadband line or stored in a conventional storage medium, the cost of transmission and storage tends to increase

Method used

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  • Method for coding image on basis of intra prediction using mpm list and apparatus therefor
  • Method for coding image on basis of intra prediction using mpm list and apparatus therefor
  • Method for coding image on basis of intra prediction using mpm list and apparatus therefor

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Embodiment Construction

[0075] While the disclosure is susceptible to various modifications and includes various embodiments, specific embodiments thereof have been shown in the drawings, by way of example, and will now be described in detail. However, this is not intended to limit the disclosure to the particular embodiments disclosed herein. Terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the technical idea of ​​the present disclosure. A singular form may include a plural form unless the context clearly dictates otherwise. Terms such as "comprising", "comprising" and the like are intended to indicate the presence of features, numbers, steps, operations, elements, components or combinations thereof written in the following description, and thus should not be interpreted as precluding the presence or addition of one or Possibility of many different features, numbers, steps, operations, elements, components or combinations thereof.

[0076...

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Abstract

A method for decoding an image performed by a decoding apparatus according to the present disclosure comprises the steps: receiving intra prediction information including at least one of MPM flag information indicating whether to derive an intra prediction mode for a current block on the basis of MPM candidates for the current block, or PLANAR flag information indicating whether to determine the intra prediction mode for the current block as a PLANAR mode; deriving the intra prediction mode for the current block on the basis of the MPM flag information and the PLANAR flag information; derivinga predicted block for the current block on the basis of the intra prediction mode for the current block; and generating a reconstructed picture on the basis of the predicted block.

Description

technical field [0001] The present disclosure relates to image encoding technology, and more particularly, to an image encoding method and apparatus based on intra prediction using a Most Probable Mode (MPM) list in an image encoding system. Background technique [0002] Recently, demands for high-resolution, high-quality images / videos such as 4K, 8K or higher ultra-high-definition (UHD) images / videos are increasing in various fields. As image / video resolution or quality becomes higher, relatively larger amounts of information or bits are transmitted compared to traditional image / video data. Therefore, if image / video data is transmitted via a medium such as an existing wired / wireless broadband line or stored in a conventional storage medium, the cost of transmission and storage tends to increase. [0003] In addition, there is growing interest and demand for virtual reality (VR) and artificial reality (AR) content and immersive media such as holograms; and images / videos exh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/11H04N19/105H04N19/593H04N19/70H04N19/176
CPCH04N19/11H04N19/105H04N19/159H04N19/176H04N19/593H04N19/70H04N19/42H04N19/157
Inventor 林宰显李翎许镇崔璋元金昇焕
Owner LG ELECTRONICS INC
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