Method and device for image encoding/decoding, and recording medium for storing bit stream

A bit stream, image technology, applied in image communication, digital video signal modification, electrical components, etc., can solve problems such as cost increase, and achieve the effect of improving conversion efficiency and encoding/decoding efficiency

Pending Publication Date: 2020-12-18
ELECTRONICS & TELECOMM RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, when image data is transmitted by using a medium such as a conventional wired and wireless broadband networ

Method used

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  • Method and device for image encoding/decoding, and recording medium for storing bit stream
  • Method and device for image encoding/decoding, and recording medium for storing bit stream
  • Method and device for image encoding/decoding, and recording medium for storing bit stream

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[0069] Various modifications can be made to the invention, and there are various embodiments of the invention, examples of which will now be provided and described in detail with reference to the accompanying drawings. However, although the exemplary embodiments can be interpreted as including all modifications, equivalents, or substitutions within the technical idea and technical scope of the present invention, the present invention is not limited thereto. Like reference numerals designate the same or similar functionality in various respects. In the drawings, the shapes and sizes of elements may be exaggerated for clarity. In the following detailed description of the invention, reference is made to the accompanying drawings that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present disclosure. It should be understood that the...

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Abstract

The present invention relates to a method and device for transform-based image encoding/decoding. A method for image decoding according to the present invention may comprise the steps of: selecting one transform kernel from among a plurality of transform kernels; performing an inverse transform on the residual block of a current block on the basis of the selected transform kernel; and reconstructing the current block on the basis of the inversely transformed residual block.

Description

technical field [0001] The present invention relates to a method and device for encoding / decoding images. In particular, the present invention relates to a method and apparatus for encoding / decoding video images based on transform, shuffle, rearrange and flip. Background technique [0002] Recently, demands for high-resolution and high-quality images such as high-definition (HD) images and ultra-high-definition (UHD) images have increased in various application fields. However, image data of higher resolution and quality has an increasing data volume compared with conventional image data. Therefore, when image data is transmitted by using a medium such as a conventional wired and wireless broadband network, or when image data is stored by using a conventional storage medium, the cost of transmission and storage increases. In order to solve these problems that occur as the resolution and quality of image data increase, efficient image encoding / decoding techniques are requir...

Claims

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Application Information

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IPC IPC(8): H04N19/60H04N19/103H04N19/176H04N19/63H04N19/105H04N19/122H04N19/119
CPCH04N19/103H04N19/105H04N19/119H04N19/122H04N19/176H04N19/60H04N19/63
Inventor 林成昶姜晶媛李河贤李镇浩金晖容李英烈金南煜
Owner ELECTRONICS & TELECOMM RES INST
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