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Image encoding/decoding method and apparatus using ibc, and method for transmitting bitstream

A technology of image decoding and image encoding, which is applied to the bit stream generated by the image encoding method/device, uses filtering to encode/decode images, and can solve the problems of increased transmission costs and storage costs for information transmission or bit volume

Pending Publication Date: 2022-03-29
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

An increase in the amount of transmitted information or bits leads to an increase in transmission costs and storage costs

Method used

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  • Image encoding/decoding method and apparatus using ibc, and method for transmitting bitstream
  • Image encoding/decoding method and apparatus using ibc, and method for transmitting bitstream
  • Image encoding/decoding method and apparatus using ibc, and method for transmitting bitstream

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Embodiment Construction

[0058] Hereinafter, the embodiments of the present disclosure will be described in detail with reference to the accompanying drawings, so as to facilitate implementation by those skilled in the art. However, the present disclosure can be implemented in various forms, and is not limited to the embodiments described here.

[0059] In describing the present disclosure, if it is determined that the detailed description of a related known function or construction unnecessarily obscures the scope of the present disclosure, the detailed description will be omitted. In the drawings, parts not related to the description of the present disclosure are omitted, and like reference numerals are assigned to like parts.

[0060] In the present disclosure, when a component is "connected", "coupled" or "linked" to another component, it may include not only a direct connection relationship but also an indirect connection relationship existing among intermediate components. In addition, when a com...

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PUM

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Abstract

An image encoding / decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus may include determining whether to parse first information specifying whether a skip mode is applied to a current block, determining whether to parse second information specifying whether an IBC (Intra Block Copy) mode is applied to the current block, determining whether the IBC mode is applied to the current block based on the first information and the second information, and deriving a prediction block of the current block based on whether the IBC mode is applied. Whether to parse the first information may be determined based on at least one of a width or a height of the current block.

Description

technical field [0001] The present disclosure relates to an image encoding / decoding method and apparatus, and a method of transmitting a bit stream, and more particularly, relates to a method and apparatus for encoding / decoding an image using filtering, and an image encoding method transmitted by the present disclosure. / means for generating bitstreams. 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 fields. As the resolution and quality of image data increase, the amount of information or bits to be transmitted relatively increases compared with existing image data. An increase in the amount of transmitted information or bits leads to an increase in transmission costs and storage costs. [0003] Therefore, efficient image compression techniques are required to efficiently transmit, store, and reproduce information about high-r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/11H04N19/176H04N19/184H04N19/593H04N19/70
CPCH04N19/11H04N19/593H04N19/70H04N19/176H04N19/184H04N19/105H04N19/159H04N19/174H04N19/46
Inventor 张炯文
Owner LG ELECTRONICS INC