Focus image processing method and related device

The invention discloses a focus image processing method and a related device, which are applied to a machine learning technology of artificial intelligence. The method comprises the steps of obtaining a coding vector by seeing a to-be-predicted image and inputting the to-be-predicted image into a coder in the target model; inputting the coding vector into a mapper in a target model to obtain a target vector, wherein the mapper is obtained by training based on the focus image pair; and inputting the target vector into a decoder in the target model so as to obtain a prediction image containing the target focus changed based on the time sequence relation. Therefore, the process of focus change prediction based on artificial intelligence is realized, the target model is trained by adopting an image-to-image training mode, and the training data is acquired based on the actual change process of the focus, so that the target model has the ability of speculating the focus image, and the accuracy of focus change predi