DATA ENCODING AND DECODING METHOD AND RELATED DEVICE

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DATA ENCODING AND DECODING METHOD AND RELATED DEVICE

This abstract first appeared for US patent application 19011813 titled 'DATA ENCODING AND DECODING METHOD AND RELATED DEVICE

Original Abstract Submitted

This application provides a data encoding and decoding method and a related device. In the encoding method, side information feature extraction is performed on a first feature map of current data, and quantization processing is performed, to obtain a first quantized feature map. Entropy encoding is performed based on the first quantized feature map, to obtain a first bitstream of the current data. A scaling coefficient is obtained based on the first quantized feature map, scaling processing is performed on a second feature map based on the scaling coefficient, and quantization processing is performed, to obtain a second quantized feature map. Scaling processing is performed on a first probability distribution parameter based on the scaling coefficient, to obtain a second probability distribution parameter, and entropy encoding is performed on the second quantized feature map based on the second probability distribution parameter, to obtain a second bitstream of the current data.