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Rapid affine motion estimation method for H.266/VVC

An affine motion and motion estimation technology, applied in the field of image processing, can solve the problem of high AME coding complexity, and achieve the effect of saving coding time, reducing computational complexity and fast coding

Active Publication Date: 2020-07-31
郑州轻大产业技术研究院有限公司 +1
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Problems solved by technology

[0007] Aiming at the deficiencies in the above-mentioned background technology, the present invention proposes a fast affine motion estimation method for H.266 / VVC, which solves the problem in VTM Affine Motion Estimation AME Coding Complex Technical Issues

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[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0051] Such as figure 1 As shown, the embodiment of the present invention provides a fast affine motion estimation method for H.266 / VVC, and the specific steps are as follows:

[0052] S1. During the image coding process, the image content of a single region is often coded using a relatively large CU. In contrast, regions with rich details are usually encoded with smaller CUs. It can be seen that whether the CU uses the SKIP mode for inter-frame prediction i...

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Abstract

The invention provides a rapid affine motion estimation method for H.266 / VVC, and the method comprises the steps: calculating the texture complexity of a current CU through adoption of a standard deviation, and dividing the current CU into a static region or a non-static region according to the texture complexity; for the CU of the static region, skipping affine motion estimation, directly utilizing motion estimation to predict the current CU, and selecting an optimal prediction direction mode through adoption of a rate distortion optimization method; and for the CU in the non-static region, classifying the current CU by using the trained random forest classifier RFC model, and outputting an optimal prediction direction mode. For a CU in the static region, affine motion estimation is skipped, and the calculation complexity is reduced; for a CU in the non-static region, prediction of a prediction direction mode is directly carried out through a model trained in advance, calculation of affine motion estimation is avoided, and therefore the complexity of an affine motion estimation module is reduced.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a fast affine motion estimation method for H.266 / VVC. Background technique [0002] In today's information age, the demand for video services such as 3D images, ultra-high-definition video, and virtual reality is increasing, and the coding and transmission of high-definition video has increasingly become a hot research issue. With the development and improvement of the H.266 / VVC standard, the improvement of video processing efficiency has also driven the development of the video industry, laying the foundation for the development of a new generation of video coding technology. Highly dense data brings huge challenges to bandwidth and storage. The current mainstream video coding standards cannot meet the current emerging applications. Therefore, a new generation of video coding standards H.266 / VVC came into being to meet people's requirements for video clarity. ,...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/109H04N19/119H04N19/51H04N19/543H04N19/567
CPCH04N19/109H04N19/119H04N19/51H04N19/543H04N19/567
Inventor 张秋闻黄立勋蒋斌王祎菡赵进超吴庆岗常化文王晓张伟伟赵永博崔腾耀郭睿孟颍辉李祖贺黄伟甘勇
Owner 郑州轻大产业技术研究院有限公司
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