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Image decoding method and apparatus therefor

A technology of image decoding and image encoding, which is applied in the field of image encoding, can solve the problems of increased transmission cost and storage cost, and achieve the effect of improving encoding efficiency

Active Publication Date: 2022-03-18
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, when image data is transmitted using a medium such as a conventional wired / wireless broadband line or stored using an existing storage medium, its transmission cost and storage cost increase

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  • Image decoding method and apparatus therefor
  • Image decoding method and apparatus therefor
  • Image decoding method and apparatus therefor

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Embodiment Construction

[0029] The present disclosure can be modified in various forms, and specific embodiments thereof will be described and illustrated in the drawings. However, the embodiments are not intended to limit the present disclosure. Terms used in the following description are for describing specific embodiments only, and are not intended to limit the present disclosure. A singular expression includes a plural expression as long as it is clearly understood differently. Terms such as "comprising" and "having" are intended to indicate the presence of features, numbers, steps, operations, elements, components or combinations thereof used in the following description, so it should be understood that the presence or addition of one or more Possibility of different features, quantities, steps, operations, elements, components or combinations thereof.

[0030] In addition, elements in the drawings described in this disclosure are independently drawn for the convenience of explaining different...

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Abstract

An image decoding method performed by a decoding device according to the present document comprises the steps of: obtaining image information; and generating a reconstructed picture based on the image information.

Description

technical field [0001] This document relates to image coding technology, and more specifically, to an image decoding method and apparatus thereof for encoding image information based on chroma quantization parameter data signaled through a high-level syntax in an image coding system. Background technique [0002] Recently, in various fields, demands for high-resolution, high-quality images such as HD (High Definition) images and UHD (Ultra High Definition) images are increasing. Because image data has high resolution and high quality, the amount of information or bits to be transmitted increases relative to conventional image data. Therefore, when image data is transmitted using a medium such as a conventional wired / wireless broadband line or stored using an existing storage medium, its transmission cost and storage cost increase. [0003] Therefore, a high-efficiency image compression technique for efficiently transmitting, storing, and reproducing information of high-reso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/44H04N19/42H04N19/91H04N19/96H04N19/124H04N19/18H04N19/70H04N19/176H04N19/186
CPCH04N19/42H04N19/70H04N19/176H04N19/186H04N19/46H04N19/124H04N19/132
Inventor S·帕鲁利金昇焕赵杰
Owner LG ELECTRONICS INC