Method for generating SAR image through cross-domain confrontation of optical image

According to the method for generating the SAR image through cross-domain confrontation of the optical image, the accuracy of a specific image analysis task can be effectively improved. According to the technical scheme, an image cross-domain generator from a source domain to a target domain generates a target domain SAR image, a target domain discriminator discriminates whether the generated SAR image is true or false, meanwhile, an image cross-domain generator Gx sends the generated target domain SAR image into an image cross-domain generator Gy, and through registration of an input optical image and a reconstructed optical image, the target domain SAR image is obtained. Forming a cyclic consistent generative adversarial network from the source domain optical image to the target domain SAR image; similarly, forming a cyclic consistent generative adversarial network from the target domain SAR image to the source domain optical image; and connecting the two cyclic consistent adversarial networks in parallel,