Virtual fitting method and system based on clothes block guidance and spatial adaptive network

The invention provides a virtual try-on method and system based on clothes block guidance and a spatial adaptive network, and the method comprises the steps: carrying out the blocking and standardization of clothes based on an original human body posture, obtaining clothes blocks under standardized representation, obtaining deformed clothes according to a target human body posture, and carrying out the transformation of the deformed clothes. A target clothes mask is predicted through a style generation branch of the conditional StyleGAN2 generation network, rough deformed clothes are corrected by using the mask, and finally an accurate virtual try-on result is generated through a texture generation branch of the conditional StyleGAN2 generation network. According to the virtual fitting method, data matching is not needed in the training stage, online optimization is not needed in the testing stage, and different types of clothes can be interchanged on the basis that details such as clothes textures are reserv