Image encoding/decoding method

An image encoding and image decoding technology, applied in the field of deriving the encoding information of the current block, can solve problems such as limitations in encoding efficiency, and achieve the effect of improving encoding/decoding efficiency

Active Publication Date: 2019-04-16
ELECTRONICS & TELECOMM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In conventional motion compensation, only spatial motion vector candidates, temporal motion vector candidates, and zero motion vector candidates are added to the list of motion vector candidates to be used, and only Uses uni-prediction and bi-prediction, so there is a limit to improving coding efficiency

Method used

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  • Image encoding/decoding method
  • Image encoding/decoding method
  • Image encoding/decoding method

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Embodiment Construction

[0040] invention model

[0041] Various modifications can be made to the invention, and there are various embodiments of the invention, examples of which will now be provided with reference to the accompanying drawings and will be described in detail. However, the present invention is not limited thereto although the exemplary embodiments can be construed to include all modifications, equivalents or replacements within the technical idea and technical scope of the present invention. Like reference numerals refer to identical or similar functions in various respects. 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 that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the disclosure. It should be unde...

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Abstract

The present invention relates to a method for carrying out motion compensation using motion vector prediction. An image decoding method therefor may comprise the steps of: acquiring a residual signalquantized for the current block; inverse-quantizing the quantized residual signal; and determining a transformation scheme for inverse-transforming the residual signal. The inverse transformation comprises a primary transformation and secondary transformation, and at least one from among a primary transformation scheme and secondary transformation scheme can be derived from a reconstructed block,around the current block, for which decoding is complete.

Description

technical field [0001] The present invention relates to a method and device for encoding / decoding images. More particularly, the present invention relates to a method and apparatus for deriving encoding information of a current block by using encoding information of neighboring blocks. Background technique [0002] Recently, demands for high-resolution and high-quality images, such as high-definition (HD) images and ultra-high-definition (UHD) images, have increased in various application fields. However, image data of higher resolution and quality increases the amount of data compared to conventional image data. Therefore, when image data is transmitted by using a medium such as a conventional wired and wireless broadband network, or when image data is stored by using a conventional storage medium, the cost of transmission and storage increases. In order to solve these problems that occur as the resolution and quality of image data increase, an efficient image encoding / de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/44H04N19/105H04N19/60H04N19/176H04N19/139H04N19/124H04N19/91H04N19/13H04N19/70
CPCH04N19/105H04N19/124H04N19/13H04N19/139H04N19/176H04N19/44H04N19/60H04N19/70H04N19/91H04N19/119H04N19/117H04N19/157H04N19/12
Inventor 全东山李镇浩姜晶媛高玄硕林成昶李河贤赵承眩金晖容崔振秀
Owner ELECTRONICS & TELECOMM RES INST
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