Image coding method using history-based motion information, and device therefor

A motion information and image coding technology, applied in the field of image coding, can solve the problems of easy increase in transmission and storage costs, etc.

Active Publication Date: 2021-05-18
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if image / video data is transmitted via a medium such as an existing wired / wireless broadband line or stored in a conventional storage medium, the cost of transmission and storage tends to increase

Method used

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  • Image coding method using history-based motion information, and device therefor
  • Image coding method using history-based motion information, and device therefor
  • Image coding method using history-based motion information, and device therefor

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Embodiment Construction

[0053] This document deals with video / image coding. For example, the methods / embodiments disclosed in this document can be applied to methods disclosed in the Versatile Video Coding (VVC) standard. In addition, the methods / embodiments disclosed in this document can be applied to the EVC (Elementary Video Coding) standard, the AOMedia Video 1 (AV1) standard, the second generation audio video coding standard (AVS2) or the next generation video / image coding standard (for example, methods disclosed in H.267 or H.268, etc.).

[0054] This document proposes various implementations of video / image encoding, and unless otherwise mentioned, these implementations may be performed in combination with each other.

[0055] The method proposed in this document can be modified in various forms, specific examples of which will be described and shown in the accompanying drawings. Terms used in the following description are only used to describe specific embodiments, and are not intended to li...

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Abstract

According to one embodiment disclosed in the present document: a history-based motion vector prediction (HMVP) candidate set for a current block is derived on the basis of a history; the HMVP candidate set may be updated or initialized according to a condition; motion information of the current block may be derived on the basis of the HMVP candidate set; and thus, inter prediction efficiency may be increased therethrough.

Description

technical field [0001] The present disclosure relates to image encoding, and more particularly, to an image encoding method using history-based motion information and an apparatus therefor. Background technique [0002] Recently, demands for high-resolution, high-quality images / videos such as 4K or 8K ultra-high-definition (UHD) images / videos are increasing in various fields. As image / video resolution or quality becomes higher, relatively more information or bits are sent compared to traditional image / video data. Therefore, if image / video data is transmitted via a medium such as an existing wired / wireless broadband line or stored in a conventional storage medium, the cost of transmission and storage tends to increase. [0003] In addition, there is growing interest in and demand for virtual reality (VR) and artificial reality (AR) content, as well as immersive media such as holograms; and images / videos that exhibit image / video characteristics that differ from actual images / ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/533H04N19/423H04N19/132H04N19/105H04N19/70H04N19/176
CPCH04N19/70H04N19/52H04N19/533H04N19/423H04N19/132H04N19/105H04N19/176
Inventor 朴婡利南廷学张炯文李在镐
Owner LG ELECTRONICS INC
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