Authors

Shiguang Shan

Publications 11

Preprint Open access

SPIN: Image Immunization Against Diffusion Editing via Single-Step Projection in Stochastic Neighborhoods

Diffusion models have greatly advanced instruction-guided image editing, while also raising concerns about unauthorized image manipulation. Image immunization addresses this risk by adding imperceptible perturbations to an input image to disrupt subsequent edits. Since editing requests are unknown at image release, pro …

Preprint Open access

Backdoor as Probe: Test-Time Adversarial Defense for CLIP

Zhongqi Wang, Jie Zhang, Nie Sen et al. · 2026

Test-time adversarial defense improves the robustness of vision-language foundation models such as CLIP without retraining. However, adversarial activation shifts are typically treated as distortions to suppress, rather than signals to exploit. We turn these shifts into defense signals by repurposing the trigger-to-tar …

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