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

Claim 8:
9. A device for detecting image information, comprising:
an acquiring module for acquiring at least one sample of image pair to be processed, wherein first image samples and second image samples of the same region acquired at two different points in time are configured as samples of image pair to be processed;
a first extracting module for inputting the samples of image pair to be processed into a first feature extraction model to be trained, extracting difference feature information between the first image samples and the second image samples;
a reconstructing module for inputting second image feature information corresponding to the second image samples and the difference feature information into a second feature extraction model, and reconstructing first reconstructed image feature information corresponding to the first image samples by the second feature extraction model;
a first calculating module for calculating a reconstruction loss function of the second feature extraction model based on the first image samples and the first reconstructed image feature information;
a second extracting module for inputting the difference feature information into a third feature extraction model and obtaining, through the third feature extraction model, a second reconstructed image feature information corresponding to the first image samples;
a second calculating module for calculating an adversarial loss function of the third feature extraction model based on the second reconstructed image feature information and the first image samples;
an optimizing module for optimizing first model parameters in the first feature extraction model to be trained based on the reconstruction loss function and on the adversarial loss function, generating an optimized first feature extraction model;
a generating module for inputting an acquired image pair to be processed into the optimized first feature extraction model, generating difference information between a first image and a second image in the acquired image pair to be processed.