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Fast VVC intra-frame prediction method based on ensemble learning and probability model

An integrated learning and probability model technology, applied in the field of video coding, can solve the problem of increasing coding time and achieve the effect of saving video coding time

Active Publication Date: 2020-09-25
FUZHOU UNIV
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Problems solved by technology

However, the introduction of new technology increases the encoding time while improving the compression ratio.

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  • Fast VVC intra-frame prediction method based on ensemble learning and probability model
  • Fast VVC intra-frame prediction method based on ensemble learning and probability model
  • Fast VVC intra-frame prediction method based on ensemble learning and probability model

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Embodiment Construction

[0050] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0051] Please refer to figure 1 , the present invention provides a kind of fast VVC intra prediction method based on integrated learning and probability model, comprising the following steps:

[0052] Step S1: Based on integrated learning and using the temporal and spatial domain correlation of the video sequence, the depth information of different coding units is predicted and obtained, which is used to determine the final division depth of the CU;

[0053] Step S2: Predict the partition mode of the uncoded CU using the partition mode of the adjacent coded CU in the space-time domain, and sort by probability to obtain the partition mode sorting table;

[0054] Step S3: According to the obtained depth information of different coding units and the sorting table of partition modes, terminate the partitioning of the CU in advance.

[0055] In this embodi...

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Abstract

The invention relates to a fast VVC intra-frame prediction method based on ensemble learning and a probability model, and the method comprises the following steps: S1, carrying out the prediction based on the ensemble learning and through the time-space domain correlation of a video sequence, and obtaining the depth information of different coding units; S2, predicting the division mode of the uncoded CU by using the division mode of the time-space domain adjacent coded CU, and performing sorting according to the probability to obtain a division mode sorting table; S3, terminating the divisionof the CU in advance according to the obtained depth information of the different coding units and the division mode sorting table. On the premise of ensuring the video quality, the video coding timeis effectively saved, and the advantages are more obvious when the method is used for mainstream high-definition and ultra-high-definition video coding at present.

Description

technical field [0001] The invention relates to the technical field of video coding, in particular to a fast VVC intra-frame prediction method based on integrated learning and probability models. Background technique [0002] The purpose of video coding is to remove a large amount of redundant information in the video (such as temporal redundancy, spatial redundancy, statistical redundancy, entropy redundancy, etc.), to compress the occupied space of video files, and improve video storage and transmission. time efficiency. [0003] VVC is a new generation of video coding standard. It achieves higher compression efficiency by updating the algorithm and improving the technology of each module in the original coding framework. Prediction technology, position-based intra-frame prediction merging technology and more angle prediction modes; in inter-frame prediction, affine motion prediction technology, advanced temporal motion vector prediction technology, adaptive motion vector...

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Application Information

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IPC IPC(8): H04N19/124H04N19/593G06N3/04G06N20/20
CPCH04N19/124H04N19/593G06N20/20G06N3/045
Inventor 赵铁松黄雨航吴陆狄徐艺文王楷
Owner FUZHOU UNIV
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