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

An image and bit technology, applied in the field of recording media for storing bit streams, can solve the problems of increased transmission and storage costs, and achieve the effects of reducing size, reducing access bandwidth, and reducing computational complexity

Pending Publication Date: 2021-04-30
ELECTRONICS & TELECOMM RES INST
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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 wired / wireless broadband line or is stored using a storage medium in the prior art, transmission and storage costs increase

Method used

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

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Embodiment Construction

[0063] 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. The various embodiments of the present discl...

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Abstract

The present specification discloses an image decoding method. The image decoding method of the present invention comprises the steps of obtaining, from a temporal motion buffer, a motion vector of a corresponding location block included in a reference picture of a current block; changing the format of the obtained motion vector; and deriving a temporal motion vector of the current block from the motion vector of which the format has been changed.

Description

technical field [0001] The present invention relates to a method and apparatus for encoding / decoding images and a recording medium for storing bitstreams. More particularly, the present invention relates to a method and apparatus for encoding / decoding images using temporal motion information. Background technique [0002] Recently, demands for high-resolution and high-quality images such as high-definition (HD) images and ultra-high-definition (UHD) images are increasing in various application fields. As image data becomes high-resolution and high-quality, the amount of data increases relative to existing image data. Therefore, when image data is transmitted using a medium such as a wired / wireless broadband line or is stored using a storage medium in the related art, transmission and storage costs increase. In order to solve these problems caused by image data becoming high-resolution and high-quality, efficient image encoding / decoding techniques are required for images wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/139H04N19/426H04N19/119H04N19/105H04N19/124H04N19/176
CPCH04N19/426H04N19/70H04N19/523H04N19/513H04N19/139H04N19/119H04N19/105H04N19/124H04N19/176H04N19/109H04N19/172H04N19/184H04N19/31H04N19/43H04N19/85
Inventor 林成昶姜晶媛李河贤李镇浩金晖容
Owner ELECTRONICS & TELECOMM RES INST
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