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Data encoding and decoding method using hybrid string matching and intra-frame prediction

An intra-frame prediction and data encoding technology, which is applied in the field of data encoding and decoding, can solve the problem of low encoding efficiency

Active Publication Date: 2021-04-06
北京博雅睿视科技有限公司
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Problems solved by technology

At this time, if only a single intra prediction mode or string matching mode is used for encoding in a coding unit, the coding efficiency of the coding unit with this feature is not high.

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  • Data encoding and decoding method using hybrid string matching and intra-frame prediction
  • Data encoding and decoding method using hybrid string matching and intra-frame prediction

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Embodiment Construction

[0048]The invention provides a data encoding and decoding method using mixed string matching and intra-frame prediction, which is suitable for encoding and decoding of lossy data compression, and also suitable for encoding and decoding of lossless data compression. Among them, the data involved in the encoding and decoding process refers to one or a combination of the following examples:

[0049] 1) One-dimensional data;

[0050] 2) Two-dimensional data;

[0051] 3) Multidimensional data;

[0052] 4) graphics;

[0053] 5) Image;

[0054] 6) A sequence of images;

[0055] 7) video;

[0056] 8) Three-dimensional scene;

[0057] 9) A sequence of continuously changing 3D scenes;

[0058] 10) The scene of virtual reality;

[0059] 11) A sequence of continuously changing virtual reality scenes;

[0060] 12) Images in pixel form;

[0061] 13) Transform domain data of the image;

[0062] 14) A collection of two-dimensional or more than two-dimensional bytes;

[0063] 15) A...

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Abstract

The present invention relates to a data encoding and decoding method of hybrid string matching and intra-frame prediction in a coding unit. Part of the pixels of the coding unit are coded in a string matching mode to generate a compressed data stream of coding information in the string matching mode; another part of the pixels of the coding unit Use the intra-frame prediction mode to encode, and generate the encoded information compressed data stream of the intra-frame prediction mode; write the information indicating that the intra-frame prediction mode and the string matching mixed mode are used in the current coding unit into the compressed data stream; analyze the compressed code Stream data, obtain the information indicating that the mixed mode of intra prediction mode and string matching is used in the current coding unit, decode some pixels in the coding unit using the string matching mode, and use the intra prediction mode to decode another part of pixels in the coding unit decoding. The present invention uses two modes for encoding and decoding in one encoding unit, and combines the respective advantages of the two modes, thereby further improving the encoding efficiency.

Description

Technical field: [0001] The invention relates to the technical field of data compression, in particular to a data encoding and decoding method using mixed string matching and intra-frame prediction. Background technique: [0002] The Internet is about to enter a new era of 5G, and images (videos) appearing in various Internet applications have become the main consumer of Internet bandwidth, accounting for more than 80% of users' Internet traffic. In particular, the image traffic of the mobile Internet is increasing day by day, and there will be explosive growth in the 5G era, which will inject a new and powerful impetus into the accelerated development of image coding technology. At the same time, it also poses many severe new challenges to the image coding technology that have not been encountered in the past. In the 5G era, everything is interconnected, and the new Internet images generated in various emerging applications are diverse and different. Therefore, how to stu...

Claims

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Application Information

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IPC IPC(8): H04N19/593H04N19/147H04N19/70H04N19/134H04N19/42
CPCH04N19/134H04N19/147H04N19/42H04N19/593H04N19/70
Inventor 赵利平林涛唐剑平
Owner 北京博雅睿视科技有限公司
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