Adaptive in-loop filtering method and device

An adaptive loop and loop filter technology, applied in image communication, digital video signal modification, electrical components, etc., can solve the problems of increased transmission cost and storage cost, reduce computational complexity, improve image coding and and/or the effect of decoding efficiency, reduced computational complexity and memory access bandwidth

Pending Publication Date: 2022-07-08
ELECTRONICS & TELECOMM RES INST
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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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  • Adaptive in-loop filtering method and device
  • Adaptive in-loop filtering method and device
  • Adaptive in-loop filtering method and device

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Embodiment Construction

[0081] Various modifications can be made to the invention, and various embodiments of the invention exist, 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 may be construed to include all modifications, equivalents, or substitutions within the technical idea and technical scope of the present invention. In various aspects, like reference numerals refer to the same or similar functions. 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 can 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 embodiments...

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Abstract

The present invention relates to a video decoding method. An image decoding method according to one embodiment of the present invention comprises the steps of: acquiring a reconstructed luminance block of a current block; determining whether to apply a cross-component adaptive loop filter to the current block; if a cross-component adaptive loop filter is to be applied to the current block, acquiring a reconstructed chroma block of the current block to which the adaptive loop filter has been applied; and acquiring a final reconstructed chroma block of the current block to which a cross-component adaptive loop filter has been applied, using the reconstructed luma block and the reconstructed chroma block to which the adaptive loop filter has been applied.

Description

technical field [0001] The present invention relates to a video encoding / decoding method, a video encoding / decoding apparatus, and a recording medium storing a bit stream. In particular, the present invention relates to a video encoding / decoding method and apparatus using in-loop filtering. Background technique [0002] Recently, in various applications, the demand for high-resolution and high-quality images such as high-definition (HD) or ultra-high-definition (UHD) images has increased. As the resolution and quality of images increase, the amount of data increases accordingly. This is one of the reasons why the transmission cost and the storage cost increase when the image data is transmitted through an existing transmission medium such as a wired or wireless broadband channel or when the image data is stored. To solve these problems of high-resolution and high-quality image data, efficient image encoding / decoding techniques are required. [0003] There are various vide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/117
CPCH04N19/117H04N19/119H04N19/82H04N19/70H04N19/176H04N19/172H04N19/186
Inventor 林成昶姜晶媛金洙雄方健李镇浩李河贤
Owner ELECTRONICS & TELECOMM RES INST
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