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Semantic Discrepancy-aware Detector for Image Forgery Identification

Created by
  • Haebom

Author

Ziye Wang, Minghang Yu, Chunyan Xu, Zhen Cui

Outline

This paper focuses on forgery detection using semantic concepts from pre-trained models, as the importance of image forgery detection has increased due to advancements in image generation technology. To address the mismatch between forged images and semantic concept spaces, we propose a novel semantic mismatch detector (SDD) consisting of three main modules. First, the semantic token sampling module mitigates spatial shifts caused by forgery marks and features unrelated to semantic concepts. Second, the concept-level forgery mismatch learning module, based on a visual reconstruction paradigm, enhances the interaction between visual semantic concepts and forgery marks, effectively capturing mismatches guided by concepts. Third, the low-level forgery feature enhancer integrates learned concept-level forgery mismatches to minimize redundant forgery information. Experimental results on two standard image forgery datasets demonstrate that the proposed SDD outperforms existing methods. The source code is available at https://github.com/wzy1111111/SSD .

Takeaways, Limitations

Takeaways:
We present a novel method to improve image forgery detection performance by leveraging semantic concepts from pre-trained models.
Effectively solves the mismatch problem between the semantic concept space and the forged image feature space.
Improving accuracy through conceptual-level forgery-inconsistency learning.
Presentation of an SDD model that outperforms existing methods and provision of open source code.
Limitations:
Further research is needed on the generalization performance of the proposed method.
Additional performance evaluations for various types of counterfeiting techniques are needed.
Need to review the possibility of overfitting for specific datasets.
Evaluation of computational costs and real-time processing potential is required.
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