Inter-frame prediction method, video coding method, electronic equipment and storage medium

An inter-frame prediction and encoded technology, applied in the field of video coding, to achieve the effect of improving coding efficiency

Active Publication Date: 2020-12-08
ZHEJIANG DAHUA TECH
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Problems solved by technology

One of the high-efficiency inter-frame prediction modes is the affine prediction mode, but the condition for enabling the affine prediction mode is that the width and height of the curre

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  • Inter-frame prediction method, video coding method, electronic equipment and storage medium
  • Inter-frame prediction method, video coding method, electronic equipment and storage medium
  • Inter-frame prediction method, video coding method, electronic equipment and storage medium

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[0038] 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 persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0039] see figure 1 , figure 1 A schematic flowchart of an embodiment of an inter-frame prediction method of the present application, the inter-frame prediction method includes the following steps:

[0040] Step S11, dividing the current block into multiple sub-blocks with the same size, and determining a first preset number of sub-blocks in the multiple sub-blocks as control points; wherein, the product of the width and height of ...

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Abstract

The invention discloses an inter-frame prediction method, a video coding method, electronic equipment and a storage medium, and the method comprises the steps: dividing a current block into a plurality of sub-blocks, defining a first preset number of control points, and constructing a first candidate list according to the motion vector of an adjacent coded block of the current block; when the first number of the motion vector candidate groups in the first candidate list is smaller than a second preset number, a second candidate list is constructed from the time-space domain, the second candidate list comprises a second number of motion vector candidate groups, and the sum of the second number and the first number is smaller than or equal to the second preset number; and obtaining a final motion vector of each sub-block by utilizing the first candidate list and the second candidate list. Wherein the product of the width and the height of the current block is greater than or equal to a preset threshold. Visibly, the conditions for starting the affine prediction mode are broadened, so that more current blocks can start the high-efficiency affine prediction mode for encoding, and the encoding efficiency is improved.

Description

technical field [0001] The present application relates to the technical field of video coding, and in particular to an inter-frame prediction method, a video coding method, electronic equipment, and a storage medium. Background technique [0002] A video is formed by continuous playback of many still images, and each still image can be regarded as a frame. Since the values ​​of similar pixels in adjacent frames are usually relatively close, the color generally does not change suddenly, so this temporal correlation can be used for compression, which is inter-frame prediction. In simple terms, inter-frame prediction is to search for the block that best matches the current block in the reference frame image of the current block to predict the current block. One of the high-efficiency inter-frame prediction modes is the affine prediction mode, but the condition for enabling the affine prediction mode is that the width and height of the current block to be encoded are respective...

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Application Information

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IPC IPC(8): H04N19/103H04N19/176H04N19/513
CPCH04N19/103H04N19/176H04N19/513
Inventor 方瑞东曾飞洋张政腾江东林聚财陈瑶粘春湄殷俊
Owner ZHEJIANG DAHUA TECH
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