Author

Jun Jia

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Preprint Sep 2026

Structured-Prior-Guided Diffusion Inpainting with Physical Consistency for Traffic Sign Augmentation

Traffic sign detection faces a long-tailed data distribution. Many rare signs matter as much as common ones from a regulatory standpoint, yet they have very few samples. Generative data augmentation is one way out. General-purpose inpainting models, however, distort digits, deform geometry and perspective, and shift co...

Luo Li, Chong-Chong Huang, Jun Jia et al. · 0 citations

Preprint Aug 2026

ArmorOCR: Grounded Adversarial Visual Perception via Observation-Transferred Self-Distillation

Experiments demonstrate that ArmorOCR consistently improves adversarial OCR perception while preserving competitive general OCR capability.

Lin-Han Cao, Si-Yuan Li, Jun Lan et al. · 0 citations