Patent ID: 11961277
Assignee: TSINGHUA UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. The non-transitory computer readable storage medium according to claim 15, wherein the method, wherein the step of optimizing the reconstruction loss function of the second feature extraction model comprises:
inputting into the second feature extraction model at least one pair of image feature information comprising the second image feature information and the difference feature information to generate the first reconstructed image feature information;
constructing the reconstruction loss function based on an absolute value of difference information between the first image samples and the first reconstructed image feature information, and a similarity between the first image samples and the first reconstructed image feature information;
performing a backward derivation of the reconstruction loss function, updating second model parameters and the first model parameters based on a gradient corresponding to the second model parameters and the first model parameters in the reconstruction loss function after the backward derivation, and optimizing the reconstruction loss function based on the second model parameters and the first model parameters.