Author

Chunjie Zhang

2 papers indexed here

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Open access Sep 2026

PatchGuard-Freq: Zero-Overhead Adversarial Patch Defense via Frequency Detection and Data-Driven Robustness

Adversarial patch attacks pose a tangible physical-world threat to traffic sign recognition in autonomous driving systems. Current state-of-the-art defenses based on image reconstruction require dual-model deployment and add per-frame inference latency, making them impractical for resource-constrained embedded platform...

De-Jie Luan, Cheng-Hua Li, Chun-Jie Zhang et al. · Computers · 0 citations

Open access Aug 2026

Spatial–Frequency Response Aware Synergy for Small-Object Detection in UAV Aerial Imagery

A spatial–frequency response aware synergistic network for small-object detection in low-altitude UAV aerial imagery and a Frequency-Response-Aware Enhancement Module (FRAEM) to effectively extract discriminative features are proposed.

De-Jie Luan, Chunlong Yang, Chun-Jie Zhang et al. · Algorithms · 0 citations