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Video encoding method, decoding method, encoder and decoder

A video coding and coding technology, applied in the field of video coding and decoding, can solve the problems of large space and bandwidth, unfavorable video file storage and transmission, etc., and achieve the effect of reducing prediction residuals, strong correlation, and improving coding performance.

Active Publication Date: 2017-03-08
PEKING UNIV
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Problems solved by technology

[0002] Original video files need to occupy a lot of space and bandwidth, which is not conducive to the storage and transmission of video files

Method used

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  • Video encoding method, decoding method, encoder and decoder
  • Video encoding method, decoding method, encoder and decoder
  • Video encoding method, decoding method, encoder and decoder

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Embodiment Construction

[0030] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0031] figure 1 It is a schematic diagram of a video coding method provided by the present invention. In this embodiment, the subject of execution of the video coding method may be an encoder, and the video coding method includes the following steps:

[0032] 101. Receive an original YUV sequence of a video file.

[0033] 102. Perform coordinate conversion processing on the position of the pixel in the original YUV sequence to obtain the target YUV sequence and coordinate conversion parameters; wherein, the coordinate conversion parameter includes coordinate conversion for identifying the position of the pixel in the original YUV sequence The coordinate conversion flag bit of the used target coordinate conversion method and the target coordinate conversion rule corresponding to the target coordinate conversion method...

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Abstract

The invention provides a video encoding method, decoding method, encoding device and decoding device. The video encoding method comprises the following steps of receiving an original YUV sequence of a video file, conducting a coordinate conversion processing to pixels in the original YUV sequence, acquiring a target YUV sequence and a coordinate conversion parameter, wherein the coordinate conversion parameter comprises a coordinate conversion flag bit for marking a target coordinate conversion method applied to conduct the coordinate conversion processing to the position of the pixels in the original YUV sequence and a target coordinate conversion rule which corresponds to the coordinate conversion method, conducting the encoding to the target YUV sequence and the coordinate conversion parameter, and acquiring encoding bitstream. By the adoption of the video encoding method, coordinate conversion processing is conducted to the pixels in the original YUV sequence of the video file, the correlation of the acquired target YUV in time domain or space domain is stronger, forecasting residual can be reduced, and encoding performance is improved.

Description

technical field [0001] The present invention relates to video coding and decoding technology, in particular to a video coding method, a decoding method, an encoder and a decoder. Background technique [0002] Original video files need to occupy a lot of space and bandwidth, which is not conducive to the storage and transmission of video files. Video encoding is to compress the original video file to obtain a video file with a small amount of data. Video encoding can better realize the storage and transmission of video files. The original video file has certain data redundancy, for example, time redundancy, space redundancy and information entropy redundancy. [0003] At present, in order to eliminate temporal redundancy and spatial redundancy in video files, prediction-based coding methods are often used. The predictive coding method that removes spatial redundancy is called intra-frame prediction, and the predictive coding method that removes temporal redundancy is called ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/593
Inventor 黄铁军邢培银张贤国田永鸿马思伟高文
Owner PEKING UNIV
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