AVS3-based affine mode screening method and apparatus, and electronic device

A screening method and affine model technology, applied in the field of video coding and decoding, can solve problems such as low efficiency of prediction mode, achieve the effects of reducing computational complexity, solving low efficiency, and improving efficiency

Pending Publication Date: 2022-05-27
HANGZHOU WEIMING XINKE TECH CO LTD +1
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Problems solved by technology

[0005] The embodiment of the present application provides an AVS3-based affine mode screening method, device, and electronic equipment to at least solve the technical problem of low efficiency in determining the prediction mode of a CU in the related art

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  • AVS3-based affine mode screening method and apparatus, and electronic device

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Embodiment Construction

[0021] In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only The embodiments are part 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 work shall fall within the scope of protection of the present application.

[0022] It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that data so used may be interchanged...

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Abstract

The invention discloses an AVS3-based affine mode screening method and apparatus, and an electronic device. The method comprises the following steps: selecting a reference space domain CU of a current coding unit CU; when the target coding mode of one reference airspace CU in the reference airspace CUs is an affine mode, taking an affine control point of the reference airspace CU of which the target coding mode is the affine mode as an affine control point of the current CU, and writing a first affine model into an affine fusion candidate list; when the target coding modes of at least two reference airspace CUs in the reference airspace CUs are affine modes, writing the first affine model and / or the second affine model into an affine fusion candidate list; when the target coding mode of the reference space domain CU does not exist in the reference space domain CU and is an affine mode, writing a second affine model into an affine fusion candidate list; and performing inter-frame prediction on the current CU according to the affine fusion candidate list. The technical problem of low efficiency of determining the prediction mode of the CU in related technologies is solved.

Description

technical field [0001] The present application relates to the field of video coding and decoding, and in particular, to an AVS3-based affine pattern screening method, device, and electronic device. Background technique [0002] In the third-generation audio and video standard AVS3, an affine model is added to predict the scaling, rotation and other motions between coding unit (Coding Unit, CU) blocks. Four- or six-parameter affine models are used in AVS3: Motion Vectors (MVs) of two or three control points are encoded, respectively. Only used for CUs whose width and height are greater than or equal to 8, the motion vector of each 4x4 or 8x8 block is derived through the control point MV. [0003] There are two types of affine SKIP modes in AVS3, model-based affine mode (MODEL BASED AFFINEMODE) and control point-based affine mode (CONTROL POINT BASED AFFINE MODE). CONTROL POINTBASED mode selects 2 or 3 control points directly on the airspace. The MODEL BASED mode first find...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/147H04N19/107H04N19/70
CPCH04N19/147H04N19/107H04N19/70
Inventor 张鹏罗昕颉向国庆黄晓峰严伟范益波
Owner HANGZHOU WEIMING XINKE TECH CO LTD
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