Encoding method and device, decoding method and device, electronic equipment and storage medium

Abstract

The invention discloses an encoding method, an encoding device, a decoding method, a decoding device, electronic equipment and a storage medium, and belongs to the technical field of data processing.The encoding method comprises the following steps of: dividing an image to be encoded into a plurality of image blocks, performing feature transformation on a first image block in the plurality of image blocks through using a transformation convolutional neural network to obtain a first transform domain component corresponding to the first image block, and quantizing the first transform domain component to obtain a quantization result of the first transform domain component; determining probability distribution of the quantization result of the first transform domain component through using aprobability estimation network; and encoding the quantization result of the first transform domain component based on the probability distribution of the quantization result of the first transform domain component. The sizes of the plurality of image blocks are possibly different, so that the compression rate and the distortion rate of the encoded image can be further ensured after the image blocks with different sizes are encoded on the basis of feature change of the transform convolutional neural network.

Description

technical field [0001] The present application relates to the technical field of data processing, and in particular to an encoding method, decoding method, device, electronic equipment, and storage medium. Background technique [0002] In the process of data processing, especially in the process of data transmission and storage, the data to be processed will be encoded in a certain way to achieve the purpose of data compression, thereby improving the efficiency of data transmission and reducing the occupied space of data storage. space. Afterwards, it can be decoded in a manner corresponding to the encoding method to realize data reading. [0003] In related technologies, a video codec is often used to encode and decode video data. The video codec mainly includes a prediction module, a transformation module, a quantization module and an entropy coding module, and video data coding and decoding are realized through different combinations of the prediction module, the transf...

AI Technical Summary

Problems solved by technology

[0005] The present application provides an encoding method, decoding method, device, electronic equipment and storage medium, which can solve the problem that the code stream overhead of the related technology is relatively large, resulting in the inability to guarantee the image compression rate

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