An open set generation image provenance method based on dynamic hypergraphs

By using a dynamic hypergraph-based approach, higher-order relationships of generated images are explicitly characterized, and stable and discriminative source fingerprints of generated models are learned. This solves the robustness and accuracy problems of source tracing of generated images in open set scenarios, and achieves effective identification of unknown models and accurate attribution of known models.

CN122135085APending Publication Date: 2026-06-02CHONGQING UNIV OF POSTS & TELECOMM

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING UNIV OF POSTS & TELECOMM
Filing Date
2026-02-11
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing methods for tracing the origin of generated images lack robustness in open-set scenarios, struggle to effectively identify unknown generative models, are susceptible to perturbations, and fail to balance accurate attribution of known models with rejection of unknown models.

Method used

A dynamic hypergraph-based approach is adopted to learn stable and discriminative source fingerprints of generative models by explicitly characterizing the high-order relationships between multiple samples and multidimensional features. A dynamic hypergraph structure is constructed using a bidirectional attention mechanism, and combined with hypergraph convolution operations and composite loss function optimization, to achieve high-precision source tracing and open set recognition of generated images.

Benefits of technology

It achieves high-precision source tracing and effective rejection in open set scenarios, improves robustness to image perturbations, can adapt to different generation models, and has good generalization and recognition capabilities.

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Abstract

This invention relates to an open-set image source tracing method based on dynamic hypergraphs, belonging to the fields of computer vision and multimedia security technology. The method constructs a hypergraph through a bidirectional attention mechanism to model high-order correlations between images. Subsequently, the framework employs hypergraph convolution operations to achieve interactive learning between structural and semantic information, and finally optimizes the result using a designed composite loss function. This learning process obtains robust high-order representations, highlighting and strengthening consistent source-level fingerprint features. This invention enables high-precision source tracing of known generative models; effective identification and rejection of unknown generative models; and source feature representations with stronger robustness to image perturbations.
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