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Video decoding method and device

A technology of video decoding and decoding algorithm, which is applied in the field of video data processing, can solve the problems of decoding flexibility and low decoding efficiency, and achieve the effects of optimized occupancy, high flexibility, and high decoding efficiency

Inactive Publication Date: 2016-08-10
LETV HLDG BEIJING CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] What the present invention aims to solve is the problem that the flexibility and decoding efficiency of the existing decoding methods are low

Method used

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  • Video decoding method and device

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Embodiment 1

[0023] The embodiment of the present invention provides a video decoding method, which can be executed in intelligent electronic devices such as computers and smart terminals, such as figure 1 The method shown includes:

[0024] S1: Obtain the correlation between the current screen data and the previous screen data. A video is actually a sequence of images. The correlation between the pictures refers to the ratio of the same content of the two pictures. For the human visual system, the higher the correlation, the more similar the two pictures look. For example, in some lecture videos, a large amount of content in the video is a person giving a speech in a fixed scene. The difference between the two pictures is basically the person’s face. The same content occupies a large proportion, so the two pictures are related Sex is very high. For a computer, the correlation between the two pictures must be calculated by the data of the pictures. There are many methods for calculating the ...

Embodiment 2

[0042] The embodiment of the present invention provides a video decoding device, such as figure 2 As shown, the method includes:

[0043] The correlation acquiring unit 21 is configured to acquire the correlation between the current picture data and the previous picture data;

[0044] The decoder determining unit 22 is configured to determine one decoder among at least two preset decoders according to the correlation, where the complexity of decoding algorithms used by different preset decoders is different;

[0045] The decoding unit 23 is configured to decode the current picture data by using the determined decoder.

[0046] According to the video decoding device provided by the embodiment of the present invention, by obtaining the correlation between the current picture data and the previous picture data, and determining a decoder in the preset decoder according to the correlation of the picture data, the determined decoder is finally used To decode the current picture data, the ...

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Abstract

The invention provides a video decoding method and device, relating to the video data processing field. The method comprises: obtaining the correlation between the data of a current frame and the data of a prior frame; determining one decoder out of at least two preset decoders according to the correlation, wherein different preset decoders employ decoding algorithms of different complexities; and utilizing a determined decoder to decode the data of a current frame. The method and device can dynamically change a decoder according to the correlation of video frames so as to optimize decoding operation occupation on system resources, and possess higher flexibility and decoding efficiency.

Description

Technical field [0001] The invention relates to the field of video data processing, in particular to a video decoding method and device. Background technique [0002] Video decoding refers to the conversion of a certain video format file into another video format file through a specific decompression technology. The basic principle is that due to the certain similarity between video frames, when storing or transmitting video, The amount of video data is reduced through steps such as inter-frame prediction and redundancy removal. When a user watches a video, the same steps as removing redundant inter-frame and inter-frame prediction are used to restore the video data in the future. [0003] Video players usually include decoders. Different players may include different numbers and types of decoders. Users can even add decoders to supplement the player. Different decoders for the same file format use different decoding algorithms (the change algorithm used in inter-frame prediction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/44H04N19/593
CPCH04N19/44H04N19/593
Inventor 彭锴
Owner LETV HLDG BEIJING CO LTD
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