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Encoding and decoding method, device and system for intra prediction mode of chroma component

An intra-frame prediction mode and chrominance component technology, applied in the field of video coding and decoding, can solve problems such as large number of coding bits and limited decoding throughput

Active Publication Date: 2021-06-29
HANGZHOU HIKVISION DIGITAL TECH
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Problems solved by technology

[0005] In view of this, the present application provides a method, device and system for encoding and decoding intra-frame prediction modes of chrominance components, so as to solve the problem that the existing method causes a large number of encoding bits and limits the decoding throughput

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  • Encoding and decoding method, device and system for intra prediction mode of chroma component
  • Encoding and decoding method, device and system for intra prediction mode of chroma component
  • Encoding and decoding method, device and system for intra prediction mode of chroma component

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[0038] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0039] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term...

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Abstract

The coding method of the intra prediction mode of the chroma component provided by the present application includes: determining the intra prediction attribute information of the chroma component of the current image block; for any sub-block in the current image block, from the Select a target intra prediction mode for the chrominance component of the sub-block in the intra prediction mode matched with the intra prediction attribute information of the degree component, and encode the target intra prediction mode to obtain the encoding information of each sub block ; According to the encoding information of each sub-block in the current image block, send an encoded bit stream carrying indication information to the decoding end, the indication information is used to indicate that the chrominance component in the current image block Predict attribute information. The coding and decoding method, device and system of the intra-frame prediction mode of the chrominance component provided by the present application can reduce the number of coding bits and improve the decoding throughput.

Description

technical field [0001] The present application relates to the technical field of video coding and decoding, and in particular to a method, device and system for coding and decoding intra-frame prediction modes of chrominance components. Background technique [0002] In existing video image encoding and decoding technologies, in order to improve encoding efficiency, various video encoding standards introduce various intra prediction modes. For example, in the HEVC standard, there are 6 types of intra-frame prediction modes for chroma components, and each sub-block can select one of these 6 types of intra-frame prediction modes. [0003] At present, for each sub-block for which the intra-frame prediction mode has been selected, when encoding the intra-frame prediction mode adopted by the chrominance component of the sub-block, firstly, 1 bit is used to represent the chroma component of the current sub-block Whether the adopted intra prediction mode is a cross-component intra ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/107H04N19/119H04N19/159H04N19/186H04N19/96
CPCH04N19/107H04N19/119H04N19/159H04N19/186H04N19/96
Inventor 戚兴春
Owner HANGZHOU HIKVISION DIGITAL TECH
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