Generative image coding and decoding knowledge base cross-domain synchronization method and system and medium

The invention provides a cross-domain synchronization method and system for a generative image coding and decoding knowledge base and a medium. According to the cross-domain synchronization method for the generative image coding and decoding knowledge base, a receiver is guided to perform knowledge synchronization in a mode of sending a synchronous image, and the anti-noise performance of cross-domain synchronization of the knowledge base is further improved due to the fact that the anti-noise performance of the image is far higher than the weight of a neural network with the strict precision requirement; secondly, synchronization is carried out only when the preset number of coding times is reached, and knowledge synchronization is carried out only by taking a part of the image as an example, so that the bandwidth resource consumption is lower than that of transmitting huge model parameters; and finally, training the distribution transformation network by adopting an optimization strategy of meta-learning, s