Author

Chuanchang Su

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Preprint Aug 2026

HAFI-VLM: A Frequency Perspective for Diagnosing and Enhancing Visual Perception in Vision-Language Models

Mechanistic analyses show that HAFI restores task-dependent spectral allocation while retaining semantic attention, establishing frequency enrichment as a distinct and effective route for improving VLM perception.

Jin Cui, Chuanchang Su, Jiayi Lu et al. · 0 citations