Gabor-based CU division fast decision-making method and device and medium

A decision-making method and a fast technology, applied in the field of data processing, can solve problems such as the increase in the complexity of the coding end, and achieve the effect of reducing the complexity of division and improving the efficiency of division

Active Publication Date: 2021-08-20
SUN YAT SEN UNIV
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Problems solved by technology

For the current CU, the encoder needs to traverse all the division methods allowed, and determine the optimal division method according to the rate-distortion cost of each division method. Although this traversal division method can accurately find the optimal division method, but It will multiply the complexity of the encoding side

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  • Gabor-based CU division fast decision-making method and device and medium
  • Gabor-based CU division fast decision-making method and device and medium
  • Gabor-based CU division fast decision-making method and device and medium

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[0046] In order to make the purpose, technical solutions and advantages of the present application, the present application will be described in further detail below with reference to the accompanying drawings and examples. It will be appreciated that the specific embodiments described herein are intended to explain the present application and is not intended to limit the present application.

[0047] For the prior art, the embodiment of the present invention proposes a fast decision algorithm based on a GABOR filter. Using the Gabor filter to separate the current Cu, the level and vertical texture characteristics are extracted, respectively, according to the difference in the texture, and skip its horizontal or vertical direction.

[0048] Specifically, embodiments of the present invention provide a Gabor-based Cu division rapid decision-making method, including:

[0049] Get the block area of ​​the current coding unit;

[0050] When the block area satisfies the preset first cond...

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Abstract

The invention discloses a Gabor-based CU division fast decision-making method and device and a medium. The method comprises the following steps: acquiring a block area of a current coding unit; when the block area meets a preset first condition, performing vertical filtering processing and horizontal filtering processing on the current coding unit to obtain a vertical filtering image and a horizontal filtering image of the current coding unit; calculating first energy of the vertical filtering image and second energy of the horizontal filtering image; determining a target division mode according to the first energy and the second energy; and dividing the current coding unit according to the target division mode. According to the embodiment of the invention, the current coding unit is respectively filtered in the horizontal and vertical directions, the horizontal and vertical texture features of the current coding unit are respectively extracted, the horizontal or vertical division mode of the current coding unit is skipped according to the texture difference of the current coding unit, the division complexity can be reduced, the division efficiency can be improved, and the method can be widely applied to the technical field of data processing.

Description

Technical field [0001] The present invention relates to the field of data processing, in particular a Gabor-based Cu division rapid decision making method, apparatus, and medium. Background technique [0002] The China Voice Video Coding Standard (AVS) Working Group was established in 2002 to provide high quality standards for digital audio and video compression, decompression, and representation of high quality standards. With the arrival of the 5G communication era, 4K / 8K ultra HD video, virtual reality (VR) video, and cloud games, new application scenarios have made demand for video coding technology. The AVS Working Group started the development of third-generation audio and video coding standards (AVS3), gigabond the VVC (Versatile Video Coding) standard, and has completed preliminary formulation in March 2019. [0003] Avs3 has added many new technologies with respect to the previous generation of video coding standards AVS2 and HEVC. For example, an intra prediction filt...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/119H04N19/117H04N19/176H04N19/14H04N19/147
CPCH04N19/119H04N19/117H04N19/176H04N19/14H04N19/147
Inventor 梁凡邱震
Owner SUN YAT SEN UNIV
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