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Image/video coding method, device and system and computer readable storage medium

A video coding and image technology, applied in the field of video coding, can solve problems such as not meeting coding requirements, not considering matching blocks, poor coding effect, etc.

Active Publication Date: 2021-09-10
ZHEJIANG DAHUA TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The current inter-frame prediction technology does not consider the already coded matching blocks in the current coding frame when constructing the matching block, resulting in poor coding effect of the current temporal motion vector prediction technology, which cannot meet the relevant coding requirements

Method used

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  • Image/video coding method, device and system and computer readable storage medium
  • Image/video coding method, device and system and computer readable storage medium
  • Image/video coding method, device and system and computer readable storage medium

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0018] With the higher and higher requirements for video definition, the data volume of video images becomes relatively large. The main function of video coding is to compress video pixel data (RGB, YUV, etc.) The purpose of reducing network bandwidth during transmission and reducing storage space.

[0019] Video codec standards include H.264 / AVC, H.265 / HEVC, H.266 / VVC, VP8, VP9, ​​AV1, AVS, etc. The main purpose is to compress the collected video...

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Abstract

The invention discloses an image / video coding method, device and system and a computer readable storage medium. The method comprises the steps: acquiring a to-be-coded block in a current coding frame and a coded adjacent frame corresponding to the current coding frame; on the basis of the position of the to-be-coded block, acquiring a co-coded block at the same position of the adjacent frames; acquiring a first candidate coding block set adjacent to the co-located coding block in the adjacent frame by using a first preset offset rule, and acquiring a second candidate coding block set adjacent to the to-be-coded block in the current coding frame by using a second preset offset rule; selecting a coding block with the minimum cost value with the to-be-coded block from the co-located coding block, the candidate coding block of the first candidate coding block set and the candidate coding block of the second candidate coding block set as an optimal coding block; and coding the to-be-coded block by using the optimal coding block to obtain a code stream of the to-be-coded block. According to the method and the device, the coding efficiency and the coding effect can be further improved by additionally considering the coded block of the spatial domain of the current coding frame as the candidate coding block.

Description

technical field [0001] The present application relates to the technical field of video coding, and in particular to an image / video coding method, device, system and computer-readable storage medium. Background technique [0002] The video can be compressed by the video coding technology to reduce the data volume of the video, reduce the network bandwidth during the video transmission process, and reduce the storage space. Generally, video coding standards include processes such as intra-frame prediction, inter-frame prediction, transformation, quantization, loop filtering, and entropy coding to achieve data compression. [0003] The current inter-frame prediction technology does not consider the coded matching blocks in the current coded frame when constructing the matching block, which leads to the poor coding effect of the current temporal motion vector prediction technology and cannot meet the relevant coding requirements. Contents of the invention [0004] The present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/176H04N19/159H04N19/55H04N19/43
CPCH04N19/176H04N19/159H04N19/55H04N19/43
Inventor 张兴明方瑞东林聚财
Owner ZHEJIANG DAHUA TECH CO LTD
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