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Residual coefficient encoding/decoding method and device

A residual coefficient and residual technology, applied in the field of residual coefficient encoding/decoding and devices, can solve the problems of increased transmission cost and storage cost, and achieve the effect of improving encoding/decoding efficiency

Pending Publication Date: 2021-01-22
HANWHA VISION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

Therefore, when image data is transmitted using a medium such as a conventional wired / wireless broadband line or is stored using a conventional storage medium, transmission cost and storage cost increase

Method used

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  • Residual coefficient encoding/decoding method and device
  • Residual coefficient encoding/decoding method and device
  • Residual coefficient encoding/decoding method and device

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[0073] The invention can be changed and modified in various ways, and it can be described with reference to different exemplary embodiments, some of which will be described and illustrated in the accompanying drawings. However, these embodiments are not intended to limit the present invention, but are understood to include all modifications, equivalents and replacements belonging to the spirit and technical scope of the present invention. In the drawings, the same reference numerals refer to the same elements throughout.

[0074] Although the terms first, second, etc. may be used to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the teachings of the present invention. The term "and / or" includes any and all combinations of multi...

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Abstract

An encoding / decoding device according to the present invention derives the residual coefficient of a residual block, calculates a quantization parameter with respect to the residual block, performs inverse quantization for the residual coefficient by means of the quantization parameter, and can restore a residual sample of the residual block by performing inverse transformation for the inverse quantized residual coefficient.

Description

technical field [0001] The present invention relates to methods and devices for encoding / decoding video signals. Background technique [0002] Demand for high-resolution, high-quality video is growing in a variety of applications. As image data becomes high-resolution and high-quality, the amount of data increases relative to conventional image data. Therefore, when image data is transmitted using a medium such as a conventional wired / wireless broadband line or is stored using a conventional storage medium, transmission costs and storage costs increase. These problems caused by high-resolution and high-quality image data can be solved by utilizing efficient image compression techniques. Contents of the invention [0003] technical problem [0004] The purpose of the present invention is to improve the encoding / decoding efficiency of residual blocks. [0005] The object of the present invention is to improve encoding / decoding efficiency through adaptive block partitioni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/13H04N19/124H04N19/176H04N19/129H04N19/119H04N19/196H04N19/70H04N19/186
CPCH04N19/119H04N19/13H04N19/157H04N19/18H04N19/124H04N19/176
Inventor 沈东圭朴时奈李钟石
Owner HANWHA VISION CO LTD
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