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Video encoding/decoding method and apparatus, and recording medium storing bitstream

A bit stream and image decoding technology, which is applied in digital video signal modification, electrical components, image communication, etc., can solve the problems of increased transmission cost and storage cost, and achieve the effect of improving encoding/decoding efficiency

Pending Publication Date: 2021-12-24
ELECTRONICS & TELECOMM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This is one of the reasons for the increase in transmission cost and storage cost when image data is transmitted through existing transmission media such as wired or wireless broadband channels or when image data is stored

Method used

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  • Video encoding/decoding method and apparatus, and recording medium storing bitstream
  • Video encoding/decoding method and apparatus, and recording medium storing bitstream
  • Video encoding/decoding method and apparatus, and recording medium storing bitstream

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Embodiment Construction

[0047] 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, the present invention is not limited thereto although the exemplary embodiments can be construed as including all modifications, equivalents or substitutions within the technical idea and technical scope of the present invention. Like reference numerals refer to 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 which 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 disclosure. It should be understood that the various emb...

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Abstract

Provided are a video encoding / decoding method and apparatus. According to the present invention, a video decoding method comprises the steps of: obtaining prediction information of a current block from a bitstream; and generating a prediction block of the current block by performing prediction on the basis of the prediction information, wherein the prediction information includes split prediction information of the current block, and the step of generating the prediction block comprises the steps of: obtaining a reference sample from a neighboring block of the current block; applying an interpolation filter to the reference sample; and generating the prediction block by using the reference sample to which the interpolation filter is applied. The interpolation filter may be determined on the basis of the split prediction information of the current block.

Description

technical field [0001] The present invention relates to an image encoding / decoding method and device, and a recording medium for storing bit streams. More particularly, the present invention relates to an image encoding / decoding method and apparatus for selecting an interpolation filter, and a recording medium for storing a bitstream. Background technique [0002] Recently, demands for high-resolution and high-quality images such as high-definition (HD) or ultra-high-definition (UHD) images have increased in various applications. As the resolution and quality of images increase, the amount of data increases accordingly. This is one of the reasons for the increase in transmission cost and storage cost when image data is transmitted through an existing transmission medium such as a wired or wireless broadband channel or when image data is stored. In order to solve these problems of high-resolution and high-quality image data, efficient image encoding / decoding techniques are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/124H04N19/159H04N19/593H04N19/80H04N19/91H04N19/96
CPCH04N19/80H04N19/593H04N19/159H04N19/96H04N19/91H04N19/124H04N19/176H04N19/11H04N19/117H04N19/186H04N19/132H04N19/105
Inventor 李镇浩姜晶媛李河贤林成昶金晖容
Owner ELECTRONICS & TELECOMM RES INST