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

An image decoding and image encoding technology, applied in image communication, digital video signal modification, electrical components, etc., can solve the problems of increased transmission cost and storage cost, and achieve the effect of improving compression efficiency

Pending Publication Date: 2022-01-28
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 broadband channels or wireless broadband channels or when image data is stored

Method used

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

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Embodiment Construction

[0044] 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 refer to identical or similar functions in all respects.

[0045] The terms 'first', 'second', etc. used in the specification may be used to describe various components, but the components are not construed as being limited by these terms. These terms are only used to distinguish one component from other components. For example, a 'first' component could be called a 'second' component, and a 'second' component could similarly be called a 'first' component, without departing from the scope of the pre...

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PUM

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Abstract

The present invention relates to an image decoding method. An image decoding method according to an embodiment of the present invention may comprise the steps of: acquiring sub-picture information relating to a current sub-picture through at least one signaling level; and decoding the current sub-picture by using the sub-picture information, wherein the sub-picture information is acquired for each sub-picture to be decoded.

Description

technical field [0001] The present invention relates to a method and apparatus for encoding / decoding images, and a recording medium for storing bitstreams. Background technique [0002] Recently, demands for high resolution and quality images such as high definition (HD) or ultra high definition (UHD) images in various applications have increased. As the resolution and quality of images increases, 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 broadband channel or a 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 required. [0003] There are various video compression techniques, such as an inter frame (Inter) prediction technique that predicts the value of a pixel in a curren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/42H04N19/107H04N19/124H04N19/91
CPCH04N19/42H04N19/107H04N19/124H04N19/91H04N19/70H04N19/119H04N19/172H04N19/157H04N19/174H04N19/17H04N19/176H04N19/1883H04N19/46H04N19/82
Inventor 林雄方健
Owner ELECTRONICS & TELECOMM RES INST