Video coding device and method based on in-loop filtering

A filter and filter coefficient technology, applied in the fields of digital video signal modification, image communication, electrical components, etc., can solve the problems of increasing transmission cost and storage cost, improve picture quality and coding accuracy, improve filtering performance, Effects that improve visual quality

Pending Publication Date: 2022-05-27
LG ELECTRONICS INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As image/video data has high resolution and high quality, the amount of information or bits to be transmitted increases compared to existing image/video data, therefore, using a medium such as an exist

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  • Video coding device and method based on in-loop filtering
  • Video coding device and method based on in-loop filtering
  • Video coding device and method based on in-loop filtering

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[0050] This document is capable of modification in various ways and may have various embodiments, and specific embodiments will be illustrated in the accompanying drawings and described in detail. However, this is not intended to limit this document to a particular embodiment. Terms commonly used in this specification are used to describe specific embodiments and are not used to limit the technical spirit of this document. Singular expressions include plural expressions unless the context clearly expresses otherwise. Terms such as "comprising" or "having" in this specification should be understood to indicate the presence of a characteristic, number, step, operation, element, part, or combination thereof described in the specification, rather than excluding the addition of one or more other characteristics , number, step, operation, element, part, or the existence or possibility of a combination thereof.

[0051] At the same time, elements in the drawings described in this d...

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Abstract

In accordance with an embodiment of the present document, a method for improving the accuracy of in-loop filtering is presented. In an example, the filtering accuracy of a chroma block may be improved on a luma block basis by performing a cross-component adaptive loop filtering procedure.

Description

technical field [0001] The present disclosure relates to an image coding apparatus and method based on in-loop filtering. Background technique [0002] Recently, there has been an increasing demand for high-resolution, high-quality images / videos such as 4K or 8K or higher Ultra High Definition (UHD) images / videos in various fields. As image / video data has high resolution and high quality, the amount of information or bits to be transmitted increases with respect to existing image / video data, therefore, using a medium such as an existing wired / wireless broadband line or existing Having storage media to send image data or using existing storage media to store image / video data increases transmission and storage costs. [0003] In addition, there is growing interest and demand for content such as virtual reality (VR) and artificial reality (AR) and immersive media such as holograms, and broadcasting of images / videos with different characteristics from real-world images such as ...

Claims

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Application Information

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IPC IPC(8): H04N19/96H04N19/117H04N19/186H04N19/70H04N19/132H04N19/82H04N19/184
CPCH04N19/96H04N19/117H04N19/186H04N19/70H04N19/132H04N19/82H04N19/184H04N19/124H04N19/176H04N19/1883H04N19/46H04N19/80
Inventor 南廷学崔璋元
Owner LG ELECTRONICS INC
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