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 the problems of affecting the compression rate of inter-frame coding, not fully considering the correlation of video image content, and not making full use of the spatial correlation of adjacent blocks, so as to improve the compression rate. Effect

Pending Publication Date: 2021-11-02
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 make full use of the spatial correlation of adjacent blocks in the inter-frame pr

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

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0040] With the higher and higher requirements for video definition, the amount of video image data becomes relatively large. The main function of video coding is to compress video pixel data (RGB, YUV, etc.) into a video stream, thereby reducing the amount of video data and realizing The purpose of reducing network bandwidth and storage space during transmission.

[0041] The video codec standards include H.264 / AVC, H.265 / HEVC, H.266 / VV...

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Abstract

The invention discloses an image/video coding method, device and system and a computer readable storage medium, and the method comprises the steps of obtaining a to-be-coded block in a current coding frame, and obtaining adjacent coded pixels of the to-be-coded block; setting a search template based on the to-be-coded block and/or the adjacent coded pixels; constructing a motion information candidate list of the to-be-coded block, wherein the motion information candidate list comprises a plurality of pieces of motion information; determining a search starting point by using a co-location block of the to-be-coded block in a reference frame or motion information of the motion information candidate list, and searching an optimal search block matched with the search template in a preset search range; obtaining an optimal matching block according to the optimal search block; and coding the to-be-coded block by using the optimal matching block to obtain a code stream of the to-be-coded block. According to the method, the matching block of the to-be-coded block is searched in the reference frame by using the search template, so that the compression rate of inter-frame coding can be further improved.

Description

technical field [0001] The present application relates to the technical field of video coding, and in particular, to an image / video coding method, apparatus, system, and computer-readable storage medium. Background technique [0002] Video can be compressed through video coding technology to reduce the amount of video data, network bandwidth and storage space during video transmission. Generally, a video coding standard includes processes such as intra-frame prediction, inter-frame prediction, transformation, quantization, loop filtering, and entropy coding to realize data compression. [0003] The current inter-frame prediction technology does not fully utilize the spatial correlation of adjacent blocks in the process of inter-frame prediction, and does not fully consider the content correlation of video images, thereby affecting the compression rate of inter-frame coding. SUMMARY OF THE INVENTION [0004] The present application provides an image / video encoding method, ...

Claims

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Application Information

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IPC IPC(8): H04N19/52H04N19/159H04N19/176H04N19/182H04N19/587
CPCH04N19/52H04N19/176H04N19/182H04N19/159H04N19/587H04N19/103H04N19/136
Inventor 江东林聚财殷俊
Owner ZHEJIANG DAHUA TECH CO LTD
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