Multifunctional video coding inter-frame division method and system and storage medium

A video coding and multi-functional technology, applied in the field of video coding, which can solve the problems of increasing the BD-rate of coding, speeding up the coding speed, and deteriorating the coding performance.

Active Publication Date: 2020-01-24
SUN YAT SEN UNIV
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Problems solved by technology

This method selects the decision tree as the classifier, and directly selects a division method from the horizontal binary division method, the vertical binary division method, the horizontal three-point selection method, the vertical three-point method and the quadtree partition method and skips Other division methods, although this met

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  • Multifunctional video coding inter-frame division method and system and storage medium
  • Multifunctional video coding inter-frame division method and system and storage medium
  • Multifunctional video coding inter-frame division method and system and storage medium

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[0078] The present invention will be further explained and described below in conjunction with the accompanying drawings and specific embodiments of the description. For the step numbers in the embodiment of the present invention, it is only set for the convenience of explanation and description, and there is no limitation on the order of the steps. The execution order of each step in the embodiment can be carried out according to the understanding of those skilled in the art Adaptive adjustment.

[0079] The multi-functional video coding inter-frame division scheme of the present invention first uses the three-frame difference method to determine whether the current block is a static block or a non-stationary block. If it is a static block, the further division operation can be terminated in advance; if it is not a static block, the edge algorithm is used. To extract the edge texture features of the coding unit CU, and decide whether to further divide the CU according to thes...

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Abstract

The invention discloses a multifunctional video coding inter-frame division method and system and a storage medium. The method comprises the following steps of: executing the next step when it is determined that a coding frame of a current coding tree unit is an intra-frame coding frame or a first ratio is less than or equal to a first threshold value; extracting and calculating vertical edge texture features and horizontal edge texture features of the current coding unit; and performing division decision of the current coding unit according to the vertical edge texture features and the horizontal edge texture features of the current coding unit. According to the invention, during inter-frame predictive coding, the relative size of the first ratio and whether the coding frame is an intra-frame coding frame or not or the edge texture feature of the current coding unit are used for skipping some division modes, so that the coding efficiency is improved; at least three division modes areselected for recursive division according to the vertical edge texture features and the horizontal edge texture features of the current coding unit, the BD-rate is smaller, and the coding performanceis better. The method can be widely applied to the field of video coding.

Description

technical field [0001] The invention relates to the field of video coding, in particular to a multifunctional video coding inter-frame division method, system and storage medium. Background technique [0002] ITU-T VCEG and ISO / IEC MPEG established the Joint Video Exploration Team (JVET) working group, which is mainly to study the potential requirements of future video coding standards. During the development of JVET, a new generation of video coding standard Versatile Video Coding (VVC, multifunctional video coding) was formed. Many new coding techniques have been researched and adopted in VVC, such as Quadtree with nested multi-type tree (QTMT), Position Dependent intra Prediction Combination (PDPC), Affine Motion Compensation Prediction (AMCP), etc. These techniques can greatly improve the encoding performance, but also greatly increase the encoding time. Therefore, it is necessary to find an efficient algorithm to achieve a better trade-off between coding efficiency an...

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Application Information

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IPC IPC(8): H04N19/103H04N19/147H04N19/176H04N19/96
CPCH04N19/103H04N19/147H04N19/176H04N19/96
Inventor 梁凡唐娜曹健
Owner SUN YAT SEN UNIV
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